Glossary for Red eye

Medical terms related to Red eye or mentioned in this section include:

• Acanthamoeba infection: Infection with a microscopic, free-living ameba that is readily found in the environment - soil, air and water. Most people exposed to the ameba will not become infected but when infections do occur, they tend to affect the eyes, central nervous system or can cause widespread infection throughout the body.
• Acanthamoeba infection of the eye: Infection by an amoebic organism called Acanthamoeba. Infection usually occurs when the amoeba enters through a break in the skin or through the nose. Infection can be localized or systemic where it can involve the central nervous system and cause potentially fatal meningoencephalitis. Infection of the eye can occur by cleaning contact lenses in contaminated water.
• Acanthamoeba keratitis: Infection of the eye with a microscopic, free-living ameba (Acanthamoeba) that is readily found in the environment - soil, air and water. Infection most often occurs through exposure to contaminated water while wearing contact lenses e.g. swimming or showering in infected waters.
• Acute Angle Closure Glaucoma: Primary angle closure is defined as an occludable drainage angle and features indicating that trabecular obstruction by the peripheral iris has occurred (ie, peripheral anterior synechiae, increased IOP, lens opacities, excessive trabecular pigmentation deposits).
• Acute Chemical poisoning - Varnish makers' and painters' Naptha: Varnish makers' and painters' Naptha is an ingredient used in certain pesticides. Exposure to the chemical can cause a range of symptoms depending on the level and route of exposure. Exposure can occur through inhalation, ingestion, the skin or eyes. Acute exposure involves a exposure over a short period of time whereas chronic exposure occurs over a longer period of time.
• Acute Pesticide poisoning - xylene: Xylene is an ingredient used in certain insecticides. Exposure to the chemical can cause a range of symptoms depending on the level and route of exposure. Exposure can occur through inhalation, ingestion, the skin or eyes. Acute exposure involves a exposure over a short period of time whereas chronic exposure occurs over a longer period of time.
• Acute posterior multifocal placoid pigment: A rare eye disease where the central vision in one or both eyes is affected by inflammation or fluid build up in the retina. The retina lies at the back of the eye. Symptoms such as fever, headache and malaise often precede the eye symptoms. The cause of the condition is unknown but may have autoimmune origins.
• Acute retinal necrosis syndrome: An acute infection of the eye usually caused by the chicken pox virus (varicella-zoster), herpes simplex or cytomegalovirus. One or both eyes may be involved.
• Acute tubulointerstitial nephritis and uveitis syndrome: The association of a sudden kidney disorder with eye inflammation. Autoimmune processes are believed to be involved.
• Acute upper respiratory infection: Upper respiratory tract infections, are the illnesses caused by an acute infection which involves the upper respiratory tract: nose, sinuses, pharynx or larynx
• Adenoviridae Infections: Infection with a virus from the Adenoviridae family. The most common sites for infection are membrane linings such as the intestines, respiratory and urinary tract and the eyes. The infection may result in a range of symptoms depending on the particular virus involved. Transmission usually occurs through breathing in the germs or through fecal-oral contact. The infection is contagious.
• Adenovirus infection in immunocompromised patients: Infection with a virus from the Adenoviridae family that occurs in a patient with a weakened immune system. The infection in these people is serious and can be fatal. The infection may result in a range of symptoms depending on the particular virus involved. Transmission usually occurs through breathing in the germs or through fecal-oral contact.
• African milk bush poisoning: The African milk bush originated from African and is a shrubby plant with small flowers. The milky sap contains diterpene esters which can cause symptoms if it is eaten or if the sap comes into contact with the skin or eyes. It can cause severe skin irritation and the high toxicity of the sap can cause death if sufficient quantities are eaten.
• Airborne allergy: An airborne allergy is an adverse reaction by the body's immune system to airborne allergens such as pollen, mold spores and house dust mites. The specific symptoms that can result can vary amongst patients.
• Alcohol drinking: The consumption of a drink containing alcohol. Alcohol consumption can cause varying degrees of impairment depending on the amount consumed. Consuming very large amounts of alcohol can lead to death.
• Alcohol-Induced Disorders: Disorders caused by excessive alcohol consumption. The symptoms are variable depending on the disorder involved. Some of the disorders are: alcohol abuse, alcohol dependence, alcohol intoxication, alcohol withdrawal, alcohol intoxication delirium, alcohol withdrawal delirium, alcohol-induced persisting dementia, alcohol-induced persisting amnestic disorder, alcohol-induced psychotic disorder, alcohol-induced mood disorder, alcohol-induced anxiety disorder, alcohol-induced sexual dysfunction, alcohol-induced sleep disorder, liver damage, liver cancer and esophageal cancer.
• Allergic conjunctivitis: also known as vernal catarrah
• Allergic reaction: A hypersensitivity reaction produced by the body, which results in an exaggerated or inappropriate immune reaction to a particular substance.
• Allergies: Immune system over-reaction to various substances.
• Angelucci's syndrome: A rare disorder characterized by various symptoms associated with vernal (nonbacterial) conjunctivitis. The conjunctivitis tends to recur seasonally and is believed to have allergic origins.
• Animal allergy: An animal allergy is an adverse reaction by the body's immune system to animals such as cats. The allergy is usually associated with the skin, saliva or urine of the animal. Animals frequently lick themselves which results in saliva sticking to the fur. Thus a person allergic to animals will often react to the fur even if it is not attached to the animal. Frequent washing of the animal may reduce symptoms. The body's immune system produces immunoglobulin E (IgE - an antibody) and histamine in response to contact with the allergen. The specific symptoms that can result can vary considerably amongst patients e.g. skin and respiratory symptoms.
• Ankylosing spondylarthritis: Inflammation of one or more spine joints. The spine becomes progressively painful and stiff and the spine joints may eventually fuse and cause disability. The condition may vary from mild to severe. Inflammation can affect other joints and tissues.
• Anthurium poisoning: Anthuriums have dark, glossy, heart-shaped leaves with glossy, heart-shaped flowers which can be red, white or other colors. The plant contains calcium oxalate crystals which an cause severe mouth pain if eaten. Large amounts would need to be eaten to cause poisoning. Eye and skin irritation can also occur on exposure to the plant.
• Asthenopia: A condition where weak eye muscles causes the eyes to get tired easily. Symptoms may include eye pain, headache, dim vision, dizziness and nausea.
• Ataxia Telangiectasia: A rare inherited childhood disorder involving progressive degeneration of the nervous system.
• Aureobasidium exposure: Aureobasidium is a type of fungus which is capable of causing a variety of diseases in humans. The fungus is most often found in damp places either inside the home or in the environment. It is often pinkish or blackish. It is a rare cause of disease and is more likely to occur in immunosuppressed patients. It can cause infection in just about any part of the body depending on the nature of the exposure (inhalation, wound, ingestion etc.) and as such the type and severity of symptoms can vary considerably.
• Autoimmune eye diseases: Eye disease that is caused by an autoimmune disease
• Bacterial conjunctivitis: Infection and inflammation of the conjunctiva caused by bacteria.
• Bacterial toxic-shock syndrome: A very rare, potentially fatal infection caused by toxins produced by bacteria, especially bacteria such as Staphylococcus aureus or Streptococcus pyogenes. The condition is often associated with tampon use but can originate from other sources.
• Behcet's Disease: Recurring inflammation of small blood vessels affecting various areas.
• Benign mucosal pemphigoid: A rare chronic disease involving blistering and scarring of the mucous membranes especially in the mouth and conjunctiva of the eye.
• Biotinidase deficiency: A metabolic disorder where the body lacks the enzyme biotinidase needed to process the vitamin called biotin (vitamin H) into carboxylase enzymes.
• Bird allergy: A bird allergy is an adverse reaction by the body's immune system to birds. The allergy is usually associated with the skin, feathers or excrement of the bird. The body's immune system produces immunoglobulin E (IgE - an antibody) and histamine in response to contact with the allergen. The specific symptoms that can result can vary considerably amongst patients e.g. skin and respiratory symptoms.
• Bird flu (avian influenza): Bird flu refers to influenza A invection. Influenza A is a viral respiratory infection that can usually occurs in birds (especially poultry) but can be transmitted to humans and cause serious illness. The virus is contagious and can cause severe illness especially in patients who are very young or old or have some other medical condition as well. The severity of symptoms can vary but usually involves respiratory and constitutional (e.g. headache, aching muscles) symptoms. The influenza virus can mutate and produce different strains though the symptoms are the same. This frequent mutation means that people need regular vaccinations to ensure they are protected against new strains as they arise.
• Bleeding symptoms: Any type of bleeding symptoms.
• Blepharitis: A common eyelid inflammation
• Bloodshot eyes: Red blood-like color of the eyes
• Box Jellyfish poisoning: A sting from the Box jellyfish contains a chemical which is toxic to the nerves, heart and skin. This jellyfish is mainly found in the waters of Northern Queensland in Australia. The tentacles should not be removed from the patient as it can cause further injection of poison.
• Browntail moth caterpillar poisoning: A hairy, bright-colored caterpillar which can cause skin symptoms on contact with the hair. Inhalation of the hairs can cause respiratory symptoms and eye exposure can also result in symptoms. Patients with pre-existing asthma or atopic allergies may suffer more severe symptoms.
• Canary allergy: A canary allergy is an adverse reaction by the body's immune system to canaries. The allergy is usually associated with the skin, feathers or excrement from the canary. The body's immune system produces immunoglobulin E (IgE - an antibody) and histamine in response to contact with the allergen. The specific symptoms that can result can vary considerably amongst patients e.g. skin and respiratory symptoms.
• Cat allergy: A cat allergy is an adverse reaction by the body's immune system to cats. The allergy is usually associated with the skin, saliva or urine of cats. Cats frequently lick themselves which results in saliva sticking to the fur. Thus a person allergic to cats will often react to the fur even if it is not attached to the animal. Frequent washing of the cat may reduce symptoms. The body's immune system produces immunoglobulin E (IgE - an antibody) and histamine in response to contact with the allergen. The specific symptoms that can result can vary considerably amongst patients e.g. skin and respiratory symptoms.
• Chemical allergy: A chemical allergy refers to an adverse reaction by the body's immune system to a chemical. The specific symptoms that can result can vary amongst patients depending on the type and duration of the exposure and individual response.
• Chemical burn: A chemical burn is a burn caused by a chemical. Symptoms vary depending on the chemical, the part of the body affected and the duration of the exposure to the chemical. Rapid first aid following exposure can limit the damage caused by the chemical. Chemical burns can occur when certain chemicals are accidentally swallowed, spilt on the skin, splashed in the eyes or even breathed in the case of chemical gases.
• Chemical burn - eyes: Burns to the eye caused by a chemical. Symptoms vary depending on the type, quantity and strength of the chemical involved as well as the duration of the exposure to the chemical and promptness of treatment measures. Immediate medical attention should be sought if chemical burns to the eyes are suspected.
• Chemical poisoning - 1-Amino-2-propanol: 1-Amino-2-propanol is a chemical used mainly in the synthesis of various pharmaceuticals such as methadone and opioid. Ingestion and other exposures to the chemical can cause various symptoms. The type and severity of symptoms varies depending on the amount of chemical involved and the nature of the exposure.
• Chemical poisoning - 1-Pentanethiol: 1-Pentanethiol is a chemical used mainly in pesticides. Ingestion and other exposures to the chemical can cause various symptoms. The type and severity of symptoms varies depending on the amount of chemical involved and the nature of the exposure.
• Chemical poisoning - 2,4,6-Trichlorophenol: 2,4,6-Trichlorophenol is a chemical used mainly as an antiseptic, pesticide, wood preservative, glue preservative and as an antimildew agent in the textile manufacturing industry. The type and severity of symptoms varies depending on the amount of chemical involved and the nature of the exposure.
• Chemical poisoning - 2,4,6-Trinitrotoluene: 2,4,6-Trinitrotoluene is a chemical used mainly as an explosive agent and in the production of dyes and photographic chemicals. The chemical may be absorbed through the skin. The type and severity of symptoms varies depending on the amount of chemical involved and the nature of the exposure.
• Chemical poisoning - 2-Amino-2-methylpropanol: 2-Amino-2-methylpropanol is a chemical used mainly in industrial applications. Ingestion and other exposures to the chemical can cause various symptoms. The type and severity of symptoms varies depending on the amount of chemical involved and the nature of the exposure.
• Chemical poisoning - 2-Aminopyridine: 2-Aminopyridine is a chemical used mainly in the production of various medicines (especially antihistamines and anti-inflammatories). Ingestion and other exposures to the chemical can cause various symptoms. The type and severity of symptoms varies depending on the amount of chemical involved and the nature of the exposure.
• Chemical poisoning - 3-Aminopyridine: 2-Aminopyridine is a chemical used mainly as an intermediate in the production of dyes, pharmaceuticals and various agricultural chemicals. Ingestion and other exposures to the chemical can cause various symptoms. The type and severity of symptoms varies depending on the amount of chemical involved and the nature of the exposure.
• Chemical poisoning - 4-Aminopyridine: 4-Aminopyridine is a pesticide used mainly to control bird pests. Ingestion and other exposures to the chemical can cause various symptoms. The type and severity of symptoms varies depending on the amount of chemical involved and the nature of the exposure.
• Chemical poisoning - Acetaldehyde: Acetaldehyde is a chemical used in the production of various products - mirrors, disinfectants, plastics, explosives, varnish and food flavoring. The type and severity of symptoms varies depending on the amount of chemical involved and the nature of the exposure.
• Chemical poisoning - Acetic Anhydride: Acetic Anhydride is a chemical used mainly in various industrial processes as well as the production of pharmaceutical products such as aspirin and acetyl salicylic acid. It is also used in the production of heroin. Ingestion and other exposures to the chemical can cause various symptoms. The type and severity of symptoms varies depending on the amount of chemical involved and the nature of the exposure.
• Chemical poisoning - Adipic Acid: Adipic Acid is a chemical used in a variety of applications from flavoring and setting aid in foods to production of nylons, paints, plasticizers and lubricants . Ingestion and other exposures to the chemical can cause various symptoms. The type and severity of symptoms varies depending on the amount of chemical involved and the nature of the exposure.
• Chemical poisoning - Agrocide: Agrocide is a chemical insecticide used mainly to control scabies or lice as well as other agricultural insect pests. The insecticide is considered moderately toxic to humans and acts as a central nervous system stimulant. Ingestion and other exposures to the chemical can cause various symptoms. The type and severity of symptoms varies depending on the amount of chemical involved and the nature of the exposure.
• Chemical poisoning - Agronexit: Agronexit is a chemical insecticide used mainly as an agricultural insecticide. The insecticide is considered moderately toxic to humans and acts as a central nervous system stimulant. Ingestion and other exposures to the chemical can cause various symptoms. The type and severity of symptoms varies depending on the amount of chemical involved and the nature of the exposure.
• Chemical poisoning - Allyl Glycidyl Ether: Allyl Glycidyl Ether is a chemical used mainly in the production of epoxies, thermoplastics, polyester resins, adhesives and elastomers. The chemical may be absorbed through the skin. Ingestion and other exposures to the chemical can cause various symptoms. The type and severity of symptoms varies depending on the amount of chemical involved and the nature of the exposure.
• Chemical poisoning - Allyl chloride: Allyl chloride is a chemical used mainly in the manufacture of epichlorohydrin and glycerin but is also used in the production of products such as polyester, varnish plastic adhesive, insecticides, perfumes and pharmaceuticals. Ingestion and other exposures to the chemical can cause various symptoms. The type and severity of symptoms varies depending on the amount of chemical involved and the nature of the exposure.
• Chemical poisoning - Allylamines: Allylamines is a chemical used mainly as an industrial solvent and in the manufacture of pharmaceutical products such as antiseptics, diuretics and sedatives . Ingestion and other exposures to the chemical can cause various symptoms. The type and severity of symptoms varies depending on the amount of chemical involved and the nature of the exposure.
• Chemical poisoning - Aluminum Phosphide: Aluminum Phosphide is a chemical used mainly as a rodenticide and fumigant for grains. The type and severity of symptoms varies depending on the amount of chemical involved and the nature of the exposure.
• Chemical poisoning - Ammonia: Ammonia is a chemical used mainly in household cleaning products and bleach. The type and severity of symptoms varies depending on the amount of chemical involved and the nature of the exposure.
• Chemical poisoning - Ammonium Nitrate: Ammonium Nitrate is a chemical used mainly in explosives, fireworks and fertilizers. Ingestion and other exposures to the chemical can cause various symptoms. The type and severity of symptoms varies depending on the amount of chemical involved and the nature of the exposure.
• Chemical poisoning - Ammonium Sulfamate: Ammonium Sulfamate is a chemical used mainly in herbicides, fertilizers and. Ingestion and other exposures to the chemical can cause various symptoms. The type and severity of symptoms varies depending on the amount of chemical involved and the nature of the exposure.
• Chemical poisoning - Anisole: Anisole is a chemical used mainly as a solvent and food additive and also in perfumes and detergents. The type and severity of symptoms varies depending on the amount of chemical involved and the nature of the exposure.
• Chemical poisoning - Antimony: Antimony is a chemical often used as an alloy with other metals such as lead. It is used in solder, ammunition, pewter, sheet metal, pipe metal and cable sheaths. The type and severity of symptoms varies depending on the amount of chemical involved and the nature of the exposure.
• Chemical poisoning - Aparasin: Aparasin Aparasin. The insecticide is considered moderately toxic to humans and acts as a central nervous system stimulant. Ingestion and other exposures to the chemical can cause various symptoms. The type and severity of symptoms varies depending on the amount of chemical involved and the nature of the exposure.
• Chemical poisoning - Aphtiria: Aphtiria is a chemical insecticide used mainly to control scabies or lice. The insecticide is considered moderately toxic to humans and acts as a central nervous system stimulant. Ingestion and other exposures to the chemical can cause various symptoms. The type and severity of symptoms varies depending on the amount of chemical involved and the nature of the exposure.
• Chemical poisoning - Barium Nitrate: Barium Nitrate is a chemical used mainly in fireworks, sparklers and ceramic glazes. The type and severity of symptoms varies depending on the amount of chemical involved and the nature of the exposure.
• Chemical poisoning - Ben-Hex: Ben-Hex is a chemical insecticide used mainly to control scabies. The insecticide is considered moderately toxic to humans and acts as a central nervous system stimulant. Ingestion and other exposures to the chemical can cause various symptoms. The type and severity of symptoms varies depending on the amount of chemical involved and the nature of the exposure.
• Chemical poisoning - Benhexol: Benhexol is a chemical insecticide used mainly to control scabies or lice. The insecticide is considered moderately toxic to humans and acts as a central nervous system stimulant. Ingestion and other exposures to the chemical can cause various symptoms. The type and severity of symptoms varies depending on the amount of chemical involved and the nature of the exposure.
• Chemical poisoning - Benzaldehyde: Benzaldehyde is a chemical with an almond-like odor and is therefore often used as a food flavoring. It is also use as an industrical solvent. . Ingestion and other exposures to the chemical can cause various symptoms. The type and severity of symptoms varies depending on the amount of chemical involved and the nature of the exposure.
• Chemical poisoning - Benzene hexachloride: Benzene hexachloride is a chemical insecticide. The insecticide is considered moderately toxic to humans and acts as a central nervous system stimulant. Ingestion and other exposures to the chemical can cause various symptoms. The type and severity of symptoms varies depending on the amount of chemical involved and the nature of the exposure.
• Chemical poisoning - Beryllium: Beryllium is an element used mainly in vehicle electronics, optics, ore processing, microwave oven parts, fuel containers and disc brakes for aeroplanes. The type and severity of symptoms varies depending on the amount of chemical involved and the nature of the exposure.
• Chemical poisoning - Bexol: Bexol is a chemical insecticide used mainly to control scabies or lice. The insecticide is considered moderately toxic to humans and acts as a central nervous system stimulant. Ingestion and other exposures to the chemical can cause various symptoms. The type and severity of symptoms varies depending on the amount of chemical involved and the nature of the exposure.
• Chemical poisoning - Boric Acid: Boric Acid is a chemical used mainly in foods (preservative, emulsifier, neutralizer), antiseptics, pesticides and contact lens cleaners. Ingestion and other exposures to the chemical can cause various symptoms. Application of boric acid directly to damaged skin can cause the chemical to be absorbed rapidly into the body and lead to death. The type and severity of symptoms varies depending on the amount of chemical involved and the nature of the exposure.
• Chemical poisoning - Calcium Sulfate: Calcium Sulfate is a chemical with a wide range of applications from soil conditioners and paint pigment to the manufacture of products such as plaster and tiles. It is also often used as a laboratory reagent. Ingestion and other exposures to the chemical can cause various symptoms. The type and severity of symptoms varies depending on the amount of chemical involved and the nature of the exposure.
• Chemical poisoning - Captafol: Captafol is a chemical used mainly as a fungicide. Ingestion and other exposures to the chemical can cause various symptoms. The type and severity of symptoms varies depending on the amount of chemical involved and the nature of the exposure.
• Chemical poisoning - Chloresene: Chloresene is a chemical insecticide used mainly to control scabies or lice. The insecticide is considered moderately toxic to humans and acts as a central nervous system stimulant. Ingestion and other exposures to the chemical can cause various symptoms. The type and severity of symptoms varies depending on the amount of chemical involved and the nature of the exposure.
• Chemical poisoning - Chlorine Dioxide: Chlorine dioxide is a chemical used mainly in water treatment and disinfectant for various processing operations. Ingestion and other exposures to the chemical can cause various symptoms. The type and severity of symptoms varies depending on the amount of chemical involved and the nature of the exposure.
• Chemical poisoning - Cyclohexanol: Cyclohexanol is a chemical used mainly as an industrial solvent and used in the manufacture of products such as plastic, nylon, soap, varnish, paint, lacquer, degreasers, detergent and insecticides. Ingestion and other exposures to the chemical can cause various symptoms. The type and severity of symptoms varies depending on the amount of chemical involved and the nature of the exposure.
• Chemical poisoning - Dibenzoyl Peroxide: Dibenzoyl Peroxide is a chemical used mainly in as a topical treatment for skin conditions such as ulcers and acne. Ingestion and other exposures to the chemical can cause various symptoms. The type and severity of symptoms varies depending on the amount of chemical involved and the nature of the exposure.
• Chemical poisoning - Diethylene Glycol Monobutyl Ether: Diethylene Glycol Monobutyl Ether is a chemical used in a variety of applications: cleaning agents, solvent, manufacture of dyes, rubber, soap and printing products . Ingestion and other exposures to the chemical can cause various symptoms. The type and severity of symptoms varies depending on the amount of chemical involved and the nature of the exposure.
• Chemical poisoning - Dimethylamine: Dimethylamine is a chemical used mainly in the manufacture of products such as detergent, pharmaceuticals and in leather tanning. Ingestion and other exposures to the chemical can cause various symptoms. The type and severity of symptoms varies depending on the amount of chemical involved and the nature of the exposure.
• Chemical poisoning - Ether: Ether is a chemical used mainly as an anesthetic and industrial solvent. Ingestion and other exposures to the chemical can cause various symptoms. The type and severity of symptoms varies depending on the amount of chemical involved and the nature of the exposure.
• Chemical poisoning - Ethylene Oxide: Ethylene oxide is a chemical used mainly in detergents, plasticizers, fumigants, inks, cosmetics and brake fluid. Ingestion and other exposures to the chemical can cause various symptoms. The type and severity of symptoms varies depending on the amount of chemical involved and the nature of the exposure.
• Chemical poisoning - Furfural: Furfural is a chemical used mainly as an industrial solvent and in the manufacture of fuels, foods and ant poisons. The chemical is readily absorbed through the skin. Ingestion and other exposures to the chemical can cause various symptoms. The type and severity of symptoms varies depending on the amount of chemical involved and the nature of the exposure.
• Chemical poisoning - HCH-gamma: HCH-gamma is an insecticide which is considered moderately toxic to humans and acts as a central nervous system stimulant. Ingestion and other exposures to the chemical can cause various symptoms. The type and severity of symptoms varies depending on the amount of chemical involved and the nature of the exposure.
• Chemical poisoning - Hexachlorocyclohexane (gamma): Hexachlorocyclohexane (gamma) is an insecticide which is considered moderately toxic to humans and acts as a central nervous system stimulant. Ingestion and other exposures to the chemical can cause various symptoms. The type and severity of symptoms varies depending on the amount of chemical involved and the nature of the exposure.
• Chemical poisoning - Hexane: Hexane is a chemical used mainly in the manufacture of products such as glue, paint, shoes and furniture. Ingestion and other exposures to the chemical can cause various symptoms. The type and severity of symptoms varies depending on the amount of chemical involved and the nature of the exposure.
• Chemical poisoning - High Melting Explosive (HMX): High Melting Explosive (HMX) is a chemical used mainly in plastic explosives and rocket fuel propellant. The chemical may be absorbed through the skin. Ingestion and other exposures to the chemical can cause various symptoms. The type and severity of symptoms varies depending on the amount of chemical involved and the nature of the exposure.
• Chemical poisoning - Hydrazine: Hydrazine is a chemical used mainly in rocket fuel, photography, laboratory chemical, corrosion inhibitor, mirror silvering and in the production of pharmaceuticals and pesticides. The chemical may be absorbed through the skin. Ingestion and other exposures to the chemical can cause various symptoms. The type and severity of symptoms varies depending on the amount of chemical involved and the nature of the exposure.
• Chemical poisoning - Hydrogen Fluoride: Hydrogen Fluoride is a chemical used mainly in car cleaning products and in the production of integrated circuits. The chemical may be absorbed through the skin. Ingestion and other exposures to the chemical can cause various symptoms. The type and severity of symptoms varies depending on the amount of chemical involved and the nature of the exposure.
• Chemical poisoning - Hydrogen Sulfide: Hydrogen Sulfide is a chemical that can be used in production processes (paper, tanneries, sulfide ores) or it may be a byproduct of certain industries. It is also found naturally in sewers and manure. Ingestion and other exposures to the chemical can cause various symptoms. The type and severity of symptoms varies depending on the amount of chemical involved and the nature of the exposure.
• Chemical poisoning - Hydroquinone: Hydroquinone is a chemical used mainly in photography developing solution, pharmaceuticals, fur processing, paints, fuel, organic chemicals, plastics, stone coatings and styrene monomers. Ingestion and other exposures to the chemical can cause various symptoms. The type and severity of symptoms varies depending on the amount of chemical involved and the nature of the exposure.
• Chemical poisoning - Isopropyl Alcohol: Isopropyl Alcohol is a chemical used mainly as a rubbing alcohol and also in perfumes, paint thinners, disinfectants, cleaners and fuels. Ingestion and other exposures to the chemical can cause various symptoms. The type and severity of symptoms varies depending on the amount of chemical involved and the nature of the exposure.
• Chemical poisoning - Jet Fuel-8: Jet Fuel-8 is an aviation turbine fuel used by the US military. Ingestion and other exposures to the chemical can cause various symptoms. The type and severity of symptoms varies depending on the amount of chemical involved and the nature of the exposure.
• Chemical poisoning - Kerosene: Kerosene is a chemical used mainly in paints, pesticides, lighter fluid, illuminating fuel and heating. Ingestion and other exposures to the chemical can cause various symptoms. The type and severity of symptoms varies depending on the amount of chemical involved and the nature of the exposure.
• Chemical poisoning - Lewisite: Lewisite is a very poisonous gas which has the potential to be used in chemical warfare due to its deadly effects. Ingestion and other exposures to the chemical can cause various symptoms. The type and severity of symptoms varies depending on the amount of chemical involved and the nature of the exposure.
• Chemical poisoning - Lindane: Lindane is a chemical used mainly as an agricultural insecticide but also as a treatment of lice and scabies infestations. The insecticide is considered moderately toxic to humans and acts as a central nervous system stimulant. Ingestion and other exposures to the chemical can cause various symptoms. The type and severity of symptoms varies depending on the amount of chemical involved and the nature of the exposure.
• Chemical poisoning - Metaldehyde: Metaldehyde is a chemical used mainly as a molluscicide, in heating fuel and in fire lighters. Ingestion and other exposures to the chemical can cause various symptoms. The type and severity of symptoms varies depending on the amount of chemical involved and the nature of the exposure.
• Chemical poisoning - Methamidophos: Methamidophos is a chemical pesticide used as an insecticide and acaricide. The chemical is an organophosphorus compound and ingestion and other exposures to the chemical can cause various symptoms. The type and severity of symptoms varies depending on the amount of chemical involved and the nature of the exposure. The chemical may be absorbed through the skin.
• Chemical poisoning - Methyl Bromide: Methyl Bromide is a chemical used mainly in insecticides, fire extinguishers, wool degreasers and oil extraction. The chemical may be absorbed through the skin. Ingestion and other exposures to the chemical can cause various symptoms. The type and severity of symptoms varies depending on the amount of chemical involved and the nature of the exposure.
• Chemical poisoning - Methyl Ethyl Ketone: Methyl Ethyl Ketone is a chemical used mainly in fiberglass and plastic manufacture. Ingestion and other exposures to the chemical can cause various symptoms. The type and severity of symptoms varies depending on the amount of chemical involved and the nature of the exposure.
• Chemical poisoning - Methyl Isocyanate: Methyl Isocyanate is a chemical used mainly in herbicides and pesticides. Ingestion and other exposures to the chemical can cause various symptoms. The type and severity of symptoms varies depending on the amount of chemical involved and the nature of the exposure.
• Chemical poisoning - Methyl Mercaptan: Methyl Mercaptan is a chemical used mainly in the production of plastic, pesticides and jet fuel. It is also used in certain toxic gases to give them a detectable odor. Ingestion and other exposures to the chemical can cause various symptoms. The type and severity of symptoms varies depending on the amount of chemical involved and the nature of the exposure.
• Chemical poisoning - Methyl Tert-Butyl Ether: Methyl Tert-Butyl Ether is a chemical used mainly in automotive gasoline but is also used as a solvent and chemical reagent. Ingestion and other exposures to the chemical can cause various symptoms. The type and severity of symptoms varies depending on the amount of chemical involved and the nature of the exposure.
• Chemical poisoning - Methylene Chloride: Methylene Chloride is a chemical used mainly in paint removers, nail polish remover, fumigants and fire extinguishers. Ingestion and other exposures to the chemical can cause various symptoms. The type and severity of symptoms varies depending on the amount of chemical involved and the nature of the exposure.
• Chemical poisoning - Methylene Diisocyanate: Methylene Diisocyanate is a chemical used mainly in the production of hard plastics and polyurethane foams. Ingestion and other exposures to the chemical can cause various symptoms. The type and severity of symptoms varies depending on the amount of chemical involved and the nature of the exposure.
• Chemical poisoning - Monocrotophos: Monocrotophos is a chemical insecticide. The chemical is an organophosphorus compound and ingestion and other exposures to the chemical can cause various symptoms. The type and severity of symptoms varies depending on the amount of chemical involved and the nature of the exposure. The chemical may be absorbed through the skin.
• Chemical poisoning - Morpholine: Morpholine is a chemical used in a variety of applications: rubber industry, corrosion inhibitor, pharmaceuticals, dyes, crop pesticides and as a solvent in various manufacturing processes. The chemical may be absorbed through the skin. Ingestion and other exposures to the chemical can cause various symptoms. The type and severity of symptoms varies depending on the amount of chemical involved and the nature of the exposure.
• Chemical poisoning - N-Butyl Chloride: N-Butyl Chloride is a chemical used mainly in veterinary worming applications. Ingestion and other exposures to the chemical can cause various symptoms. The type and severity of symptoms varies depending on the amount of chemical involved and the nature of the exposure.
• Chemical poisoning - N-Methyl-2-Pyrrolidone: N-Methyl-2-Pyrrolidone is a chemical used mainly in paint strippers, wire coating processes, petroleum industry and in the microelectronics industry. The chemical may be absorbed through the skin. Ingestion and other exposures to the chemical can cause various symptoms. The type and severity of symptoms varies depending on the amount of chemical involved and the nature of the exposure.
• Chemical poisoning - Nitric Acid: Nitric Acid is a chemical used mainly as a cleaning agent for food and dairy equipment, in explosives, metal etching, in liquid fuel rockets and as a laboratory reagent. Ingestion and other exposures to the chemical can cause various symptoms. The type and severity of symptoms varies depending on the amount of chemical involved and the nature of the exposure.
• Chemical poisoning - Nitroethane: Nitroethane is a chemical used mainly as in industrial solvent, fuel additive, propellant, manufacture of pharmaceutical products and in artificial nail removers . Ingestion and other exposures to the chemical can cause various symptoms. The type and severity of symptoms varies depending on the amount of chemical involved and the nature of the exposure.
• Chemical poisoning - Nitrofen: Nitrofen is a used as a herbicide. Ingestion and other exposures to the chemical can cause various symptoms. The type and severity of symptoms varies depending on the amount of chemical involved and the nature of the exposure.
• Chemical poisoning - Nitrogen Dioxide: Nitrogen Dioxide is a chemical which has industrial applications but is also an air pollutant formed by burning fossil fuels such as gas, oil and coal as well as vehicle exhaust and industrial byproduct. Ingestion and other exposures to the chemical can cause various symptoms. The type and severity of symptoms varies depending on the amount of chemical involved and the nature of the exposure.
• Chemical poisoning - Nitromethane: Nitromethane is a chemical used mainly in racing fuel and as an industrial and cleaning solvent. It is also used in the manufacture of various products: explosives, coatings, pesticides, coatings and pharmaceuticals. Ingestion and other exposures to the chemical can cause various symptoms. The type and severity of symptoms varies depending on the amount of chemical involved and the nature of the exposure.
• Chemical poisoning - Nitrophenol: Nitrophenol is a chemical used mainly in the production of dyes and pigments and also in fungicides and laboratory chemicals. The chemical may be absorbed through the skin. Ingestion and other exposures to the chemical can cause various symptoms. The type and severity of symptoms varies depending on the amount of chemical involved and the nature of the exposure.
• Chemical poisoning - Nitrophenol Urea: Nitrophenol Urea is a pesticide. The chemical may be absorbed through the skin. Ingestion and other exposures to the chemical can cause various symptoms. The type and severity of symptoms varies depending on the amount of chemical involved and the nature of the exposure.
• Chemical poisoning - Osmium: Osmium is a chemical used mainly in alloys to produce very strong metals for such items as fountain pen tips and electrical contacts. Ingestion and other exposures to the chemical can cause various symptoms. The type and severity of symptoms varies depending on the amount of chemical involved and the nature of the exposure.
• Chemical poisoning - Para-Dichlorobenzene: Para-Dichlorobenzene is a chemical used mainly as a pesticide, mold and mildew preventer, moth repellent and toilet deodorant. Ingestion and other exposures to the chemical can cause various symptoms. The type and severity of symptoms varies depending on the amount of chemical involved and the nature of the exposure.
• Chemical poisoning - Paraphenylenediamine: Paraphenylenediamine is a chemical used mainly in photographic developing solutions, hair dye, photocopying and printing ink, black rubber, grease, temporary tattoos and car cosmetics. The chemical may be absorbed through the skin. Ingestion and other exposures to the chemical can cause various symptoms. The type and severity of symptoms varies depending on the amount of chemical involved and the nature of the exposure.
• Chemical poisoning - Pentaborane: Pentaborane is a chemical used mainly as a fuel additive, reducing agent and rocket propellant. The chemical may be absorbed through the skin. Ingestion and other exposures to the chemical can cause various symptoms. The type and severity of symptoms varies depending on the amount of chemical involved and the nature of the exposure.
• Chemical poisoning - Pentachlorophenol: Pentachlorophenol is a chemical used mainly in fungicides, herbicides, insecticides, molluscicides, algicides and bactericides. It is commonly used as a wood preservative. Ingestion and other exposures to the chemical can cause various symptoms. The type and severity of symptoms varies depending on the amount of chemical involved and the nature of the exposure.
• Chemical poisoning - Pepper Spray: Pepper Spray is a chemical used mainly in riot control. Ingestion and other exposures to the chemical can cause various symptoms. The type and severity of symptoms varies depending on the amount of chemical involved and the nature of the exposure.
• Chemical poisoning - Potassium Permanganate: Potassium Permanganate is a chemical used in various applications: topical antibacterial, photography, laboratory chemical, wood dye, water purification and bleaching processes. Ingestion and other exposures to the chemical can cause various symptoms. The type and severity of symptoms varies depending on the amount of chemical involved and the nature of the exposure.
• Chemical poisoning - Propylene Glycol: Propylene Glycol is a chemical used mainly in cosmetics and in antifreeze and as a pharmaceutical solvent. Ingestion and other exposures to the chemical can cause various symptoms. The type and severity of symptoms varies depending on the amount of chemical involved and the nature of the exposure.
• Chemical poisoning - Propylene Glycol Dinitrate: Propylene Glycol Dinitrate is a chemical used mainly as a propellant or occasionally in explosives. Ingestion and other exposures to the chemical can cause various symptoms. The type and severity of symptoms varies depending on the amount of chemical involved and the nature of the exposure.
• Chemical poisoning - Pyridine: Pyridine is a chemical used mainly in the production of herbicides, pesticides, antihistamine steroids, sulfa antibiotics, water repellents, dyes, paints and rubber. The chemical may be absorbed through the skin. Ingestion and other exposures to the chemical can cause various symptoms. The type and severity of symptoms varies depending on the amount of chemical involved and the nature of the exposure.
• Chemical poisoning - Quinone: Quinone is a chemical used mainly in industrial applications for the manufacture of dyes, chemicals, textiles cosmetics and in the tanning processes. Ingestion and other exposures to the chemical can cause various symptoms. The type and severity of symptoms varies depending on the amount of chemical involved and the nature of the exposure.
• Chemical poisoning - RDX: RDX is a chemical used mainly in explosives, fireworks, detonators and rodenticides. Ingestion and other exposures to the chemical can cause various symptoms. The type and severity of symptoms varies depending on the amount of chemical involved and the nature of the exposure.
• Chemical poisoning - Rhodium: Rhodium is metallic element used mainly in platinum and palladium alloys and vehicle catalytic converters. It is also used in jewelry, high quality pens, and as a catalyst in various industrial processes. Ingestion and other exposures to the chemical can cause various symptoms. The type and severity of symptoms varies depending on the amount of chemical involved and the nature of the exposure.
• Chemical poisoning - Selenium Dioxide: Selenium Dioxide is a chemical used mainly in gun bluing solutions. Ingestion and other exposures to the chemical can cause various symptoms. The type and severity of symptoms varies depending on the amount of chemical involved and the nature of the exposure.
• Chemical poisoning - Sodium Azide: Sodium Azide is a chemical used mainly in nematocides, herbicides, explosives detonators and in vehicle air bags. The chemical may be absorbed through the skin. Ingestion and other exposures to the chemical can cause various symptoms. The type and severity of symptoms varies depending on the amount of chemical involved and the nature of the exposure.
• Chemical poisoning - Sodium Hypochlorite: Sodium Hypochlorite is a chemical used mainly in disinfectants, bleach, deodorizers and as a water purifier. Ingestion and other exposures to the chemical can cause various symptoms. The type and severity of symptoms varies depending on the amount of chemical involved and the nature of the exposure.
• Chemical poisoning - Sulfur Trioxide: Sulfur Trioxide is a chemical used mainly in the production of sulfuric acid and explosives. Sulfur trioxide is also a significant air pollutant which can mix with moisture in the air to produce "acid rain". Ingestion and other exposures to the chemical can cause various symptoms. The type and severity of symptoms varies depending on the amount of chemical involved and the nature of the exposure.
• Chemical poisoning - Sulfuric Acid: Sulfuric Acid is a chemical used mainly in car batteries and in the fur and leather industries. It is a significant component of air pollution and results in the production of "acid rain". Ingestion and other exposures to the chemical can cause various symptoms. The type and severity of symptoms varies depending on the amount of chemical involved and the nature of the exposure.
• Chemical poisoning - Sulfuryl Fluoride: Sulfuryl Fluoride is a chemical used mainly as a fumigant insecticide. Ingestion and other exposures to the chemical can cause various symptoms. The type and severity of symptoms varies depending on the amount of chemical involved and the nature of the exposure.
• Chemical poisoning - Tecnazene: Tecnazene is a chemical used mainly to prevent sprouts forming on stored potatoes and as a greenhouse fungicide. Ingestion and other exposures to the chemical can cause various symptoms. The chemical is considered only mildly toxic but should nevertheless be handled with care. The type and severity of symptoms varies depending on the amount of chemical involved and the nature of the exposure.
• Chemical poisoning - Tetrachloroethane: Tetrachloroethane is a chemical used mainly as a dry cleaning solvent but is also used as a degreaser and in paint strippers and spot removers. Ingestion and other exposures to the chemical can cause various symptoms. The type and severity of symptoms varies depending on the amount of chemical involved and the nature of the exposure.
• Chemical poisoning - Tetrachloroethylene: Tetrachloroethylene is a chemical used mainly as a fabric dry cleaner, degreaser, worming treatment for animals and in the manufacture of freons. Ingestion and other exposures to the chemical can cause various symptoms. The type and severity of symptoms varies depending on the amount of chemical involved and the nature of the exposure.
• Chemical poisoning - Tetradifon: Tetradifon is a chemical used as an acaricide and is considered unlikely to produces symptoms upon exposure.
• Chemical poisoning - Tetrahydrofuran: Tetrahydrofuran is a chemical used mainly as a plastic solvent and in the processing of varnish, ink, paint and glue. Ingestion and other exposures to the chemical can cause various symptoms. The type and severity of symptoms varies depending on the amount of chemical involved and the nature of the exposure.
• Chemical poisoning - Tetryl: Tetryl is a chemical used mainly as a military explosive. Ingestion and other exposures to the chemical can cause various symptoms. The type and severity of symptoms varies depending on the amount of chemical involved and the nature of the exposure.
• Chemical poisoning - Thiram: Thiram is a chemical used mainly in the rubber industry, latex manufacture and as a pesticide. Ingestion and other exposures to the chemical can cause various symptoms. The type and severity of symptoms varies depending on the amount of chemical involved and the nature of the exposure.
• Chemical poisoning - Thorium: Thorium is an element used mainly as a nuclear power source and in magnesium alloys, electronic tubes, light filaments and electrodes. Ingestion and other exposures to the chemical can cause various symptoms. The type and severity of symptoms varies depending on the amount of chemical involved and the nature of the exposure.
• Chemical poisoning - Tin: Tin is an element used mainly in steel can coatings, copper wire coating and solder, bronze and pewter. Ingestion and other exposures to the chemical can cause various symptoms. The type and severity of symptoms varies depending on the amount of chemical involved and the nature of the exposure.
• Chemical poisoning - Titanium: Titanium is an element used mainly in alloys. Ingestion and other exposures to the chemical can cause various symptoms. The type and severity of symptoms varies depending on the amount of chemical involved and the nature of the exposure.
• Chemical poisoning - Toluene Diisocyanate: Toluene Diisocyanate is a chemical used mainly in the manufacture of elastomers and polyurethane foams. Ingestion and other exposures to the chemical can cause various symptoms. The type and severity of symptoms varies depending on the amount of chemical involved and the nature of the exposure.
• Chemical poisoning - Trichloroethane: Trichloroethane is a chemical used mainly as an industrial solvent but also in inks and lubricants. Ingestion and other exposures to the chemical can cause various symptoms. The type and severity of symptoms varies depending on the amount of chemical involved and the nature of the exposure.
• Chemical poisoning - Triethanolamine: Triethanolamine is a widely used chemical. It is involved in the production of cosmetics, toilet products, waxes, resins, paraffins, dyes, polishes and herbicides. Ingestion and other exposures to the chemical can cause various symptoms. The type and severity of symptoms varies depending on the amount of chemical involved and the nature of the exposure.
• Chemical poisoning - Vinyl Choride: Vinyl Choride is an intermediate chemical used in the manufacturing process of a variety of products: polyvinyl chloride, pipes, wire coverings, vehicle plastics, rubber, paper, furniture and glass. Ingestion and other exposures to the chemical can cause various symptoms. The type and severity of symptoms varies depending on the amount of chemical involved and the nature of the exposure.
• Chemical poisoning - Xylene: Xylene is a chemical used mainly in pesticides and in the manufacture of glue, paint, paper, rubber, pharmaceuticals and polymers. It is also used as a solvent and clarifier for microscopic tissue examinations in laboratories. Ingestion and other exposures to the chemical can cause various symptoms. The type and severity of symptoms varies depending on the amount of chemical involved and the nature of the exposure.
• Chemical poisoning - acetic acid: Acetic acid is a chemical used for medicinal purposes such as superficial ear infections, jellyfish stings and bladder irrigation. Acetic acid is a also a component of vinegar which is used as a cooking ingredient. The type and severity of symptoms varies depending on the amount of chemical involved and the nature of the exposure.
• Chemical poisoning - gamma-HccH: Gamma-HccH is an insecticide which is considered moderately toxic to humans and acts as a central nervous system stimulant. Ingestion and other exposures to the chemical can cause various symptoms. The type and severity of symptoms varies depending on the amount of chemical involved and the nature of the exposure.
• Chicken allergy: A chicken allergy is an adverse reaction by the body's immune system to chickens. The allergy is usually associated with the skin, feathers or excrement from the chicken. The body's immune system produces immunoglobulin E (IgE - an antibody) and histamine in response to contact with the allergen. The specific symptoms that can result can vary considerably amongst patients e.g. skin and respiratory symptoms.
• Chlamydia: Common sexually transmitted disease often without symptoms.
• Choroiditis: Inflammation of the part of the eye called the choroid (layer behind the retina). Usually only one eye is affected.
• Chronic Pesticide poisoning - xylene: Xylene is an ingredient used in certain insecticides. Exposure to the chemical can cause a range of symptoms depending on the level and route of exposure. Exposure can occur through inhalation, ingestion, the skin or eyes. Acute exposure involves a exposure over a short period of time whereas chronic exposure occurs over a longer period of time.
• Closed-angle glaucoma: A severe form of glaucoma needing emergency treatment to avoid blindness.
• Cluster headache: Also known as alarm headache, more common in young men, presents with unilateral headache, rhinorrhea and lacrimation
• Cobra poisoning: The Cobra is a poisonous snake which can be found in Africa, Asia and other parts of the world. Some cobras are able to spit venom into the victims eye and cause serious symptoms.
• Cocky Apple stinging caterpillar poisoning: Contact with the poisonous hairs or spines of the Cocky Apple stinging caterpillar can cause skin rashes or even a hypersensitivity reaction in some cases.
• Cold-like symptoms: Symptoms similar to the common cold.
• Common Variable Immunodeficiency: An immunodeficiency disorder involving low blood gamma globulin levels which results in an increased susceptibility to infections. The condition may be inherited or can be caused by certain drugs (levamisole, hydantoin and carbamazepine).
• Common Woolly Bear moth caterpillar poisoning: Contact with the poisonous hairs or spines of the Common Woolly Bear moth caterpillar can cause skin rashes or even a hypersensitivity reaction in some cases.
• Common cold: Symptoms similar to the common cold.
• Conjunctival disorders: Diseases of the conjunctiva in the eye.
• Conjunctival injection: Nonuniform redness of the conjunctiva.
• Conjunctivitis: A condition which is characterized by inflammation of the conjunctiva
• Conjunctivitis with Pseudomembrane: A complication of conjunctivitis where the discharge from the inflammation coagulates and sticks to the conjunctiva to form what is called a pseudomembrane. This pseudomembrane can be removed usually without causing any bleeding.
• Cornea disorders: Disorders affecting the cornea of the eye
• Corneal Graft Rejection: A corneal graft is the replacement of damaged corneal tissue with a health cornea. Sometimes the body's immune system may reject the new tissue. Figures vary but roughly a tenth of corneal transplant patients have problems with rejection in the short term and about a third suffer rejection symptoms within the first five years after surgery. Rejection can occur months or even years after the transplant. Transplants involving both eyes increase the risk of rejection. Old patients tend to have fewer problems with rejection.
• Corneal Transplant Rejection: A corneal graft is the replacement of damaged corneal tissue with a health cornea. Sometimes the body's immune system may reject the new tissue. Figures vary but roughly a tenth of corneal transplant patients have problems with rejection in the short term and about a third suffer rejection symptoms within the first five years after surgery. Rejection can occur months or even years after the transplant. Transplants involving both eyes increase the risk of rejection. Old patients tend to have fewer problems with rejection.
• Corneal abrasion: scratch on the corneal surface
• Corneal erosion: attrition of the corneal surface
• Corneal ulcer: An ulcer occurring in the cornea.
• Craniofacial dysostosis type 1: A rare genetic disorder characterized by premature joining of certain skull bones during development which has an impact on the shape of the head and face. Features include poor vision, hypoplasia of maxilla an impaired hearing.
• Crystal meth addiction: An uncontrollable desire to use crystal meth on a regular basis. Crystal meth is a powerful stimulant used illegally for its effects. It is highly addictive and known by street names such as ice, speed, glass, crank and chalk. Frequent use leads to an increased tolerance to the drug so higher and higher doses are required to achieve the desired euphoric feeling.
• Cytomegalovirus retinitis: Inflammation of the retina of the eye which can cause blindness. The cytomegalovirus is an easily transmissible viral infection that is common but generally causes no symptoms except in infants and people with weakened immune systems.
• Cytosine arabinose syndrome: Symptoms following the use of a chemotherapy drug called cytosine arabinose.
• Dacryocystitis: Inflammation of the eye's tear sac
• Depigmentation of the iris, acute, bilateral: A rare eye disorder involving the loss of pigmentation from the stroma of the iris in both eyes. The pigment tends to disperse from the iris over the course of a few months. The cause is unknown but normal pigmentation tends to return to the iris after a few years.
• Dermatostomatitis, Stevens Johnson type: A rare but serious condition involving inflammation and blistering of the skin and mucous membranes. It is believed to be an allergic reaction that can occur in response to some drugs or infectious diseases.
• Diphtheria: Infectious bacterial respiratory disease
• Dog allergy: A dog allergy is an adverse reaction by the body's immune system to dogs. The allergy is usually associated with the skin, saliva or urine of dogs. Dogs frequently lick themselves which results in saliva sticking to the fur. Thus a person allergic to dogs will often react to the fur even if it is not attached to the dog. Frequent washing of the dog may reduce symptoms. The body's immune system produces immunoglobulin E (IgE - an antibody) and histamine in response to contact with the allergen. The specific symptoms that can result can vary considerably amongst patients e.g. skin and respiratory symptoms.
• Dry eye: Dryness of one or both eyes
• Duck allergy: A duck allergy is an adverse reaction by the body's immune system to ducks. The allergy is usually associated with the skin, feathers or excrement from the duck. The body's immune system produces immunoglobulin E (IgE - an antibody) and histamine in response to contact with the allergen. The specific symptoms that can result can vary considerably amongst patients e.g. skin and respiratory symptoms.
• Dust mite allergies: Allergy to dust mites in household dust.
• Dyskeratosis Congenita: A rare genetic disorder characterized by sking pigmentation abnormalities, nail dystrophy and mucous membrane changes.
• Eagle's syndrome: A group of symptoms caused by calcification of the stylohyoid ligament and an abnormally long styloid process. The styloid process is a bone at the base of the skull which is attached to muscles and ligaments connected to the throat and tongue. If this bone is too long then actions such as swallowing and turning the head can cause pain and discomfort. The cause of the condition is unknown but trauma and inflammation may be the cause in some cases.
• Ebola: Dangerous virus mostly found in Africa.
• Ectropion: Outward turning of the eyelid away from the eye.
• Elephant's-ear poisoning: The Elephant's ear is a common garden plant which has large, heart-shaped leaves on long stalks. The plant contains calcium oxalate and saphotoxin which can cause poisoning if eaten and irritation upon contact with skin or eyes. The toxins are quite poisonous and death can occur if sufficient quantities are eaten.
• Entropion: A condition in which the eyelids fold inward causing the eyelashes to rub against the eye.
• Episcleritis: This is inflammation of the episclera and adjacent tissues
• Eye discharge: Discharge from one or both eyes.
• Eye foreign body: Feeling of grit or sand in the eye
• Eye infection: AN infection that occurs in the eye
• Eye irritation: A sensation or feeling of discomfort to the eye
• Eye muscle strain: An eye disorder caused by strain on the eye muscles. The eyes become tired when being used intensely such as occurs when working on the computer, driving or reading, long periods of time straining to see in dim light or extremely bright lights. Eye refraction problems can also cause eye strain.
• Eye pain: Pain affecting the eye
• Eye swelling: A swelling located at the eye
• Eye symptoms: Symptoms affecting the eye
• Eyelid symptoms: Symptoms affecting the eyelid
• Fever: Raised body temperature usually with other symptoms.
• Flu: Symptoms similar to flu including fever
• Flu-like symptoms: Symptoms similar to flu including fever
• Food Additive Allergy: A food additive allergy is an adverse reaction by the body's immune system to a food additive or a food or drink containing to food additive. The specific symptoms that can result can vary considerably amongst patients and may range from mild to severe.
• Food Additive Allergy - Annatto: Annatto allergy is an adverse reaction by the body's immune system to a yellow food coloring called annatto which is used as an additive in a number of foods and drinks The specific symptoms that can result can vary considerably amongst patients and may range from mild to severe.
• Food Additive Allergy - Carmine: A carmine allergy is an adverse reaction by the body's immune system to carmine which is used as an additive in a number of foods (red yoghurt, red popsicles, red drinks) as well as in some cosmetics The specific symptoms that can result can vary considerably amongst patients and may range from mild to severe.
• Food Additive Allergy - amaranth: An amaranth allergy is an adverse reaction by the body's immune system to a red food coloring called amaranth which is used in a number of foods and drinks. The specific symptoms that can result can vary considerably amongst patients and may range from mild to severe.
• Food Additive Allergy - benzoate: A benzoate allergy is an adverse reaction by the body's immune system to a food additive called benzoate which is used in a number of foods. The specific symptoms that can result can vary considerably amongst patients and may range from mild to severe.
• Food Additive Allergy - carageenan gum: A carageenan gum allergy is an adverse reaction by the body's immune system to a food additive called carageenan gum which is used in a number of foods. The specific symptoms that can result can vary considerably amongst patients and may range from mild to severe.
• Food Additive Allergy - erythrosine: An erythrosine allergy is an adverse reaction by the body's immune system to a red food coloring called erythrosine which is used in a number of foods and drinks. The specific symptoms that can result can vary considerably amongst patients and may range from mild to severe.
• Food Additive Allergy - guar gum: A guar gum allergy is an adverse reaction by the body's immune system to a food additive called guar gum which is used in a number of foods. The specific symptoms that can result can vary considerably amongst patients and may range from mild to severe.
• Food Additive Allergy - gum: A gum allergy is an adverse reaction by the body's immune system to a food additive called gum which is used in a number of foods. The specific symptoms that can result can vary considerably amongst patients and may range from mild to severe.
• Food Additive Allergy - gum acacia: A gum acacia allergy is an adverse reaction by the body's immune system to a food additive called gum acacia which is used in a number of foods. The specific symptoms that can result can vary considerably amongst patients and may range from mild to severe.
• Food Additive Allergy - gum tragacanth: A gum tragacanth allergy is an adverse reaction by the body's immune system to a food additive called gum traganth (type of gum) which is used in a number of foods. The specific symptoms that can result can vary considerably amongst patients and may range from mild to severe.
• Food Additive Allergy - lecithin: A lecithin allergy is an adverse reaction by the body's immune system to a food additive called lecithin which is used in a number of foods. The specific symptoms that can result can vary considerably amongst patients and may range from mild to severe.
• Food Additive Allergy - locust bean gum: A locust bean gum allergy is an adverse reaction by the body's immune system to a food additive called locust bean gum which is used in a number of foods. The specific symptoms that can result can vary considerably amongst patients and may range from mild to severe.
• Food Additive Allergy - quinoline yellow: A quinoline yellow allergy is an adverse reaction by the body's immune system to a yellow food coloring called quinoline yellow which is used in a number of foods and drinks. The specific symptoms that can result can vary considerably amongst patients and may range from mild to severe.
• Food Additive Allergy - saffron: A saffron allergy is an adverse reaction by the body's immune system to a yellow food coloring called saffron which is used as an additive in a number of foods and drinks. The specific symptoms that can result can vary considerably amongst patients and may range from mild to severe.
• Food Additive Allergy - salicytes: A salicylate allergy is an adverse reaction by the body's immune system to a food additive called salicylate which is used in a number of foods. Salicylates also occur naturally in a wide range of plant foods especially fruits. The specific symptoms that can result can vary considerably amongst patients and may range from mild to severe.
• Food Additive Allergy - sulphite: A sulphite allergy is an adverse reaction by the body's immune system to a food additive called sulphite which is used in a number of foods. The specific symptoms that can result can vary considerably amongst patients and may range from mild to severe.
• Food Additive Allergy - sulphite derivative: A sulphite derivative allergy is an adverse reaction by the body's immune system to a food additive called sulphite derivative which is used in a number of foods. The specific symptoms that can result can vary considerably amongst patients and may range from mild to severe.
• Food Additive Allergy - sunset yellow: A sunset yellow allergy is an adverse reaction by the body's immune system to a yellow food coloring called sunset yellow which is used in a number of foods and drinks. The specific symptoms that can result can vary considerably amongst patients and may range from mild to severe.
• Food Additive Allergy - tartrazine: A tartrazine allergy is an adverse reaction by the body's immune system to tartrazine which is used as an additive in a number of foods (some breakfast cereals, cake mixes, chocolate chips etc.) The specific symptoms that can result can vary considerably amongst patients and may range from mild to severe.
• Food Additive Allergy - xanthan gum: A xanthan gum allergy is an adverse reaction by the body's immune system to a food additive called xanthan gum which is used in a number of foods. The specific symptoms that can result can vary considerably amongst patients and may range from mild to severe.
• Food Allergy - Coriander: A coriander allergy is an adverse reaction by the body's immune system to coriander or food containing coriander. This type of allergy is rare and serious reactions are very rare. The body's immune system produces immunoglobulin E (IgE - an antibody) and histamine in response to contact with the allergen. The specific symptoms that can result can vary considerably amongst patients e.g. skin, respiratory and behavioral symptoms.
• Food Allergy - Linden tea: A linden tea allergy is an adverse reaction by the body's immune system to linden tea or food containing linden tea. This type of allergy is rare and serious reactions are very rare. The body's immune system produces immunoglobulin E (IgE - an antibody) and histamine in response to contact with the allergen. The specific symptoms that can result can vary considerably amongst patients e.g. skin, respiratory and behavioral symptoms.
• Food Allergy - MSG: An MSG allergy is an adverse reaction by the body's immune system to MSG or food containing MSG. The body's immune system produces immunoglobulin E (IgE - an antibody) and histamine in response to contact with the allergen. The specific symptoms that can result can vary considerably amongst patients from a severe anaphylactic reaction to asthma, abdominal symptoms, eczema or headaches.
• Food Allergy - Quorn: A quorn allergy is an adverse reaction by the body's immune system to quorn or food containing quorn. Quorn is a type of protein made from a fungus. This type of allergy is rare and serious reactions are very rare. The body's immune system produces immunoglobulin E (IgE - an antibody) and histamine in response to contact with the allergen. The specific symptoms that can result can vary considerably amongst patients e.g. skin, respiratory and behavioral symptoms.
• Food Allergy - abalone: An abalone allergy is an adverse reaction by the body's immune system to abalone or food containing abalone. The body's immune system produces immunoglobulin E (IgE - an antibody) and histamine in response to contact with the allergen. The specific symptoms that can result can vary considerably amongst patients from a severe anaphylactic reaction to asthma, abdominal symptoms, eczema or headaches.
• Food Allergy - almond: An almond allergy is an adverse reaction by the body's immune system to almonds or food containing almonds. The body's immune system produces immunoglobulin E (IgE - an antibody) and histamine in response to contact with the allergen. The specific symptoms that can result can vary considerably amongst patients from a severe anaphylactic reaction to asthma, abdominal symptoms, eczema or headaches.
• Food Allergy - aniseed: An aniseed allergy is an adverse reaction by the body's immune system to aniseed or food containing aniseed. This type of allergy is rare and serious reactions are very rare. The body's immune system produces immunoglobulin E (IgE - an antibody) and histamine in response to contact with the allergen. The specific symptoms that can result can vary considerably amongst patients e.g. skin, respiratory and behavioral symptoms.
• Food Allergy - apple: An apple allergy is an adverse reaction by the body's immune system to apples or food containing apples. The body's immune system produces immunoglobulin E (IgE - an antibody) and histamine in response to contact with the allergen. The specific symptoms that can result can vary considerably amongst patients from a severe anaphylactic reaction to asthma, abdominal symptoms, eczema or headaches.
• Food Allergy - apricot: An apricot allergy is an adverse reaction by the body's immune system to apricots or food containing apricots. The body's immune system produces immunoglobulin E (IgE - an antibody) and histamine in response to contact with the allergen. The specific symptoms that can result can vary considerably amongst patients from a severe anaphylactic reaction to asthma, abdominal symptoms, eczema or headaches.
• Food Allergy - avocado: An avocado allergy is an adverse reaction by the body's immune system to avocados or food containing avocados. The body's immune system produces immunoglobulin E (IgE - an antibody) and histamine in response to contact with the allergen. The specific symptoms that can result can vary considerably amongst patients from a severe anaphylactic reaction to asthma, abdominal symptoms, eczema or headaches.
• Food Allergy - banana: A banana allergy is an adverse reaction by the body's immune system to bananas or food containing bananas. This type of allergy is rare and serious reactions are very rare. The body's immune system produces immunoglobulin E (IgE - an antibody) and histamine in response to contact with the allergen. The specific symptoms that can result can vary considerably amongst patients e.g. skin, respiratory and behavioral symptoms.
• Food Allergy - barley: A barley allergy is an adverse reaction by the body's immune system to barley or food containing barley. The body's immune system produces immunoglobulin E (IgE - an antibody) and histamine in response to contact with the allergen. The specific symptoms that can result can vary considerably amongst patients from a severe anaphylactic reaction to asthma, abdominal symptoms, eczema or headaches.
• Food Allergy - bean: A bean allergy is an adverse reaction by the body's immune system to beans or food containing beans. This type of allergy is rare and serious reactions are very rare. The body's immune system produces immunoglobulin E (IgE - an antibody) and histamine in response to contact with the allergen. The specific symptoms that can result can vary considerably amongst patients e.g. skin, respiratory and behavioral symptoms.
• Food Allergy - beer: A beer allergy is an adverse reaction by the body's immune system to beer or food containing beer. This type of allergy is rare and serious reactions are very rare. The body's immune system produces immunoglobulin E (IgE - an antibody) and histamine in response to contact with the allergen. The specific symptoms that can result can vary considerably amongst patients e.g. skin, respiratory and behavioral symptoms.
• Food Allergy - bell pepper: A bell pepper allergy is an adverse reaction by the body's immune system to bell peppers or food containing bell pepper. The body's immune system produces immunoglobulin E (IgE - an antibody) and histamine in response to contact with the allergen. The specific symptoms that can result can vary considerably amongst patients from a severe anaphylactic reaction to asthma, abdominal symptoms, eczema or headaches.
• Food Allergy - brazil nut: A brazil nut allergy is an adverse reaction by the body's immune system to brazil nuts or food containing brazil nuts. The body's immune system produces immunoglobulin E (IgE - an antibody) and histamine in response to contact with the allergen. The specific symptoms that can result can vary considerably amongst patients from a severe anaphylactic reaction to asthma, abdominal symptoms, eczema or headaches.
• Food Allergy - cabbage: A cabbage allergy is an adverse reaction by the body's immune system to cabbage or food containing cabbage. This type of allergy is rare and serious reactions are very rare. The body's immune system produces immunoglobulin E (IgE - an antibody) and histamine in response to contact with the allergen. The specific symptoms that can result can vary considerably amongst patients e.g. skin, respiratory and behavioral symptoms.
• Food Allergy - carp: A carp (type of fish) allergy is an adverse reaction by the body's immune system to carp or food containing carp. The body's immune system produces immunoglobulin E (IgE - an antibody) and histamine in response to contact with the allergen. The specific symptoms that can result can vary considerably amongst patients from a severe anaphylactic reaction to asthma, abdominal symptoms, eczema or headaches.
• Food Allergy - carrot: A carrot allergy is an adverse reaction by the body's immune system to carrots or food containing carrots. The body's immune system produces immunoglobulin E (IgE - an antibody) and histamine in response to contact with the allergen. The specific symptoms that can result can vary considerably amongst patients from a severe anaphylactic reaction to asthma, abdominal symptoms, eczema or headaches.
• Food Allergy - cashew: A cashew allergy is an adverse reaction by the body's immune system to cashews or food containing cashews. The body's immune system produces immunoglobulin E (IgE - an antibody) and histamine in response to contact with the allergen. The specific symptoms that can result can vary considerably amongst patients from a severe anaphylactic reaction to asthma, abdominal symptoms, eczema or headaches.
• Food Allergy - castor bean: A castor bean allergy is an adverse reaction by the body's immune system to castor beans or food containing castor beans. The body's immune system produces immunoglobulin E (IgE - an antibody) and histamine in response to contact with the allergen. The specific symptoms that can result can vary considerably amongst patients from a severe anaphylactic reaction to asthma, abdominal symptoms, eczema or headaches.
• Food Allergy - celery: A celery allergy is an adverse reaction by the body's immune system to celery or food containing celery. The body's immune system produces immunoglobulin E (IgE - an antibody) and histamine in response to contact with the allergen. The specific symptoms that can result can vary considerably amongst patients from a severe anaphylactic reaction to asthma, abdominal symptoms, eczema or headaches.
• Food Allergy - chamomile tea: A chamomile tea allergy is an adverse reaction by the body's immune system to chamomile tea or food containing chamomile. This type of allergy is rare and serious reactions are very rare. The specific symptoms that can result can vary considerably amongst patients e.g. skin, respiratory and behavioral symptoms.
• Food Allergy - cherry: A cherry allergy is an adverse reaction by the body's immune system to cherries or food containing cherries. The body's immune system produces immunoglobulin E (IgE - an antibody) and histamine in response to contact with the allergen. The specific symptoms that can result can vary considerably amongst patients from a severe anaphylactic reaction to asthma, abdominal symptoms, eczema or headaches.
• Food Allergy - chestnut: A chestnut allergy is an adverse reaction by the body's immune system to chestnuts or food containing chestnuts. The body's immune system produces immunoglobulin E (IgE - an antibody) and histamine in response to contact with the allergen. The specific symptoms that can result can vary considerably amongst patients from a severe anaphylactic reaction to asthma, abdominal symptoms, eczema or headaches.
• Food Allergy - chick pea: A chick pea allergy is an adverse reaction by the body's immune system to chick peas or food containing chick peas. This type of allergy is rare and serious reactions are very rare. The body's immune system produces immunoglobulin E (IgE - an antibody) and histamine in response to contact with the allergen. The specific symptoms that can result can vary considerably amongst patients e.g. skin, respiratory and behavioral symptoms.
• Food Allergy - cinnamon: A cinnamon allergy is an adverse reaction by the body's immune system to cinnamon or food containing cinnamon. This type of allergy is rare and serious reactions are very rare. The body's immune system produces immunoglobulin E (IgE - an antibody) and histamine in response to contact with the allergen. The specific symptoms that can result can vary considerably amongst patients e.g. skin, respiratory and behavioral symptoms.
• Food Allergy - coconut: A coconut allergy is an adverse reaction by the body's immune system to coconuts or food containing coconut. This type of allergy is rare and serious reactions are very rare. The body's immune system produces immunoglobulin E (IgE - an antibody) and histamine in response to contact with the allergen. The specific symptoms that can result can vary considerably amongst patients e.g. skin, respiratory and behavioral symptoms.
• Food Allergy - codfish: A codfish allergy is an adverse reaction by the body's immune system to codfish or food containing codfish. The body's immune system produces immunoglobulin E (IgE - an antibody) and histamine in response to contact with the allergen. The specific symptoms that can result can vary considerably amongst patients from a severe anaphylactic reaction to asthma, abdominal symptoms, eczema or headaches.
• Food Allergy - crab: A crab allergy is an adverse reaction by the body's immune system to crabs or food containing crab. The body's immune system produces immunoglobulin E (IgE - an antibody) and histamine in response to contact with the allergen. The specific symptoms that can result can vary considerably amongst patients from a severe anaphylactic reaction to asthma, abdominal symptoms, eczema or headaches.
• Food Allergy - crayfish: A crayfish allergy is an adverse reaction by the body's immune system to crayfish or food containing crayfish. The body's immune system produces immunoglobulin E (IgE - an antibody) and histamine in response to contact with the allergen. The specific symptoms that can result can vary considerably amongst patients from a severe anaphylactic reaction to asthma, abdominal symptoms, eczema or headaches.
• Food Allergy - cumin: A cumin allergy is an adverse reaction by the body's immune system to cumin or food containing cumin. This type of allergy is rare and serious reactions are very rare. The body's immune system produces immunoglobulin E (IgE - an antibody) and histamine in response to contact with the allergen. The specific symptoms that can result can vary considerably amongst patients e.g. skin, respiratory and behavioral symptoms.
• Food Allergy - date palm: A date palm allergy is an adverse reaction by the body's immune system to date palms or food containing date palms. The body's immune system produces immunoglobulin E (IgE - an antibody) and histamine in response to contact with the allergen. The specific symptoms that can result can vary considerably amongst patients from a severe anaphylactic reaction to asthma, abdominal symptoms, eczema or headaches.
• Food Allergy - fennel: A fennel allergy is an adverse reaction by the body's immune system to fennel or food containing fennel. This type of allergy is rare and serious reactions are very rare. The body's immune system produces immunoglobulin E (IgE - an antibody) and histamine in response to contact with the allergen. The specific symptoms that can result can vary considerably amongst patients e.g. skin, respiratory and behavioral symptoms.
• Food Allergy - fish: A fish allergy is an adverse reaction by the body's immune system to fish or food containing fish. The body's immune system produces immunoglobulin E (IgE - an antibody) and histamine in response to contact with the allergen. The specific symptoms that can result can vary considerably amongst patients from a severe anaphylactic reaction to asthma, abdominal symptoms, eczema or headaches.
• Food Allergy - frog: A frog allergy is an adverse reaction by the body's immune system to eating frogs or food containing frogs. This type of allergy is rare and severe reactions are even rarer. The body's immune system produces immunoglobulin E (IgE - an antibody) and histamine in response to contact with the allergen. The specific symptoms that can result can vary considerably amongst patients from a severe anaphylactic reaction to asthma, abdominal symptoms, eczema or headaches.
• Food Allergy - garbanzo (legume): A garbanzo allergy is an adverse reaction by the body's immune system to garbanzo or food containing garbanzo. This type of allergy is rare and serious reactions are very rare. The body's immune system produces immunoglobulin E (IgE - an antibody) and histamine in response to contact with the allergen. The specific symptoms that can result can vary considerably amongst patients e.g. skin, respiratory and behavioral symptoms.
• Food Allergy - garlic: A garlic allergy is an adverse reaction by the body's immune system to garlic or food containing garlic. This type of allergy is rare and serious reactions are very rare. The body's immune system produces immunoglobulin E (IgE - an antibody) and histamine in response to contact with the allergen. The specific symptoms that can result can vary considerably amongst patients e.g. skin, respiratory and behavioral symptoms.
• Food Allergy - hazelnut: A hazelnut allergy is an adverse reaction by the body's immune system to hazelnuts or food containing hazelnuts. The body's immune system produces immunoglobulin E (IgE - an antibody) and histamine in response to contact with the allergen. The specific symptoms that can result can vary considerably amongst patients from a severe anaphylactic reaction to asthma, abdominal symptoms, eczema or headaches.
• Food Allergy - hops: A hop allergy is an adverse reaction by the body's immune system to hops or food containing hops. The body's immune system produces immunoglobulin E (IgE - an antibody) and histamine in response to contact with the allergen. The specific symptoms that can result can vary considerably amongst patients from a severe anaphylactic reaction to asthma, abdominal symptoms, eczema or headaches.
• Food Allergy - kidney bean: A kidney bean allergy is an adverse reaction by the body's immune system to kidney bean or food containing kidney bean. The body's immune system produces immunoglobulin E (IgE - an antibody) and histamine in response to contact with the allergen. The specific symptoms that can result can vary considerably amongst patients from a severe anaphylactic reaction to asthma, abdominal symptoms, eczema or headaches.
• Food Allergy - kiwi fruit: A kiwi fruit allergy is an adverse reaction by the body's immune system to kiwi fruit or food containing kiwi fruit. The body's immune system produces immunoglobulin E (IgE - an antibody) and histamine in response to contact with the allergen. The specific symptoms that can result can vary considerably amongst patients from a severe anaphylactic reaction to asthma, abdominal symptoms, eczema or headaches.
• Food Allergy - lentil: A lentil allergy is an adverse reaction by the body's immune system to lentils or food containing lentils. The body's immune system produces immunoglobulin E (IgE - an antibody) and histamine in response to contact with the allergen. The specific symptoms that can result can vary considerably amongst patients from a severe anaphylactic reaction to asthma, abdominal symptoms, eczema or headaches.
• Food Allergy - lettuce: A lettuce allergy is an adverse reaction by the body's immune system to lettuce or food containing lettuce. This type of allergy is rare and serious reactions are very rare. The body's immune system produces immunoglobulin E (IgE - an antibody) and histamine in response to contact with the allergen. The specific symptoms that can result can vary considerably amongst patients e.g. skin, respiratory and behavioral symptoms.
• Food Allergy - lima bean: A lima bean allergy is an adverse reaction by the body's immune system to lima beans or food containing lima beans. This type of allergy is rare and serious reactions are very rare. The body's immune system produces immunoglobulin E (IgE - an antibody) and histamine in response to contact with the allergen. The specific symptoms that can result can vary considerably amongst patients e.g. skin, respiratory and behavioral symptoms.
• Food Allergy - lobster: A lobster allergy is an adverse reaction by the body's immune system to lobsters or food containing lobster. The body's immune system produces immunoglobulin E (IgE - an antibody) and histamine in response to contact with the allergen. The specific symptoms that can result can vary considerably amongst patients from a severe anaphylactic reaction to asthma, abdominal symptoms, eczema or headaches.
• Food Allergy - lychee: A lychee allergy is an adverse reaction by the body's immune system to lychee or food containing lychee. The body's immune system produces immunoglobulin E (IgE - an antibody) and histamine in response to contact with the allergen. The specific symptoms that can result can vary considerably amongst patients from a severe anaphylactic reaction to asthma, abdominal symptoms, eczema or headaches.
• Food Allergy - mackerel: A mackerel allergy is an adverse reaction by the body's immune system to mackerel or food containing mackerel. The body's immune system produces immunoglobulin E (IgE - an antibody) and histamine in response to contact with the allergen. The specific symptoms that can result can vary considerably amongst patients from a severe anaphylactic reaction to asthma, abdominal symptoms, eczema or headaches.
• Food Allergy - mango: A mango allergy is an adverse reaction by the body's immune system to mango or food containing mango. This type of allergy is rare and serious reactions are very rare. The specific symptoms that can result can vary considerably amongst patients e.g. skin, respiratory and behavioral symptoms.
• Food Allergy - melon: A melon allergy is an adverse reaction by the body's immune system to melons or food containing melons. The body's immune system produces immunoglobulin E (IgE - an antibody) and histamine in response to contact with the allergen. The specific symptoms that can result can vary considerably amongst patients from a severe anaphylactic reaction to asthma, abdominal symptoms, eczema or headaches.
• Food Allergy - milk: A milk allergy is an adverse reaction by the body's immune system to milk or food containing milk. The body's immune system produces immunoglobulin E (IgE - an antibody) and histamine in response to contact with the allergen. The specific symptoms that can result can vary considerably amongst patients from a severe anaphylactic reaction to asthma, abdominal symptoms, eczema or headaches.
• Food Allergy - mollusk: A mollusk allergy is an adverse reaction by the body's immune system to mollusks or food containing mollusk. The body's immune system produces immunoglobulin E (IgE - an antibody) and histamine in response to contact with the allergen. The specific symptoms that can result can vary considerably amongst patients from a severe anaphylactic reaction to asthma, abdominal symptoms, eczema or headaches.
• Food Allergy - mussel: A mussel allergy is an adverse reaction by the body's immune system to mussels or food containing mussels. The body's immune system produces immunoglobulin E (IgE - an antibody) and histamine in response to contact with the allergen. The specific symptoms that can result can vary considerably amongst patients from a severe anaphylactic reaction to asthma, abdominal symptoms, eczema or headaches.
• Food Allergy - mustard leaf: A mustard leaf allergy is an adverse reaction by the body's immune system to mustard leaves or food containing mustard leaves. The body's immune system produces immunoglobulin E (IgE - an antibody) and histamine in response to contact with the allergen. The specific symptoms that can result can vary considerably amongst patients from a severe anaphylactic reaction to asthma, abdominal symptoms, eczema or headaches.
• Food Allergy - oat: An oat allergy is an adverse reaction by the body's immune system to oats or food containing oats. The body's immune system produces immunoglobulin E (IgE - an antibody) and histamine in response to contact with the allergen. The specific symptoms that can result can vary considerably amongst patients from a severe anaphylactic reaction to asthma, abdominal symptoms, eczema or headaches.
• Food Allergy - olive: An olive allergy is an adverse reaction by the body's immune system to olives or food containing olives. The body's immune system produces immunoglobulin E (IgE - an antibody) and histamine in response to contact with the allergen. The specific symptoms that can result can vary considerably amongst patients from a severe anaphylactic reaction to asthma, abdominal symptoms, eczema or headaches.
• Food Allergy - oranges: An orange allergy is an adverse reaction by the body's immune system to oranges or food containing oranges. This type of allergy is rare and serious reactions are very rare. The body's immune system produces immunoglobulin E (IgE - an antibody) and histamine in response to contact with the allergen. The specific symptoms that can result can vary considerably amongst patients e.g. skin, respiratory and behavioral symptoms.
• Food Allergy - papaya: A papaya allergy is an adverse reaction by the body's immune system to papaya or food containing papaya. The body's immune system produces immunoglobulin E (IgE - an antibody) and histamine in response to contact with the allergen. The specific symptoms that can result can vary considerably amongst patients from a severe anaphylactic reaction to asthma, abdominal symptoms, eczema or headaches.
• Food Allergy - paprika: A paprika allergy is an adverse reaction by the body's immune system to paprika or food containing paprika. This type of allergy is rare and serious reactions are very rare. The body's immune system produces immunoglobulin E (IgE - an antibody) and histamine in response to contact with the allergen. The specific symptoms that can result can vary considerably amongst patients e.g. skin, respiratory and behavioral symptoms.
• Food Allergy - parsley: A parsley allergy is an adverse reaction by the body's immune system to parsley or food parsley tomatoes. The body's immune system produces immunoglobulin E (IgE - an antibody) and histamine in response to contact with the allergen. The specific symptoms that can result can vary considerably amongst patients from a severe anaphylactic reaction to asthma, abdominal symptoms, eczema or headaches.
• Food Allergy - pea: A pea allergy is an adverse reaction by the body's immune system to peas or food containing peas. The body's immune system produces immunoglobulin E (IgE - an antibody) and histamine in response to contact with the allergen. The specific symptoms that can result can vary considerably amongst patients from a severe anaphylactic reaction to asthma, abdominal symptoms, eczema or headaches.
• Food Allergy - peach: A peach allergy is an adverse reaction by the body's immune system to peach or food containing peach. The body's immune system produces immunoglobulin E (IgE - an antibody) and histamine in response to contact with the allergen. The specific symptoms that can result can vary considerably amongst patients from a severe anaphylactic reaction to asthma, abdominal symptoms, eczema or headaches.
• Food Allergy - peanuts: A peanut allergy is an adverse reaction by the body's immune system to peanuts or food containing peanuts. The body's immune system produces immunoglobulin E (IgE - an antibody) and histamine in response to contact with the allergen. The specific symptoms that can result can vary considerably amongst patients from a severe anaphylactic reaction to asthma, abdominal symptoms, eczema or headaches.
• Food Allergy - pear: A pear allergy is an adverse reaction by the body's immune system to pears or food containing pears. The body's immune system produces immunoglobulin E (IgE - an antibody) and histamine in response to contact with the allergen. The specific symptoms that can result can vary considerably amongst patients from a severe anaphylactic reaction to asthma, abdominal symptoms, eczema or headaches.
• Food Allergy - pecan: A pecan allergy is an adverse reaction by the body's immune system to pecans or food containing pecans. The body's immune system produces immunoglobulin E (IgE - an antibody) and histamine in response to contact with the allergen. The specific symptoms that can result can vary considerably amongst patients from a severe anaphylactic reaction to asthma, abdominal symptoms, eczema or headaches.
• Food Allergy - pine nut: A pine nut allergy is an adverse reaction by the body's immune system to pine nuts or food containing pine nuts. This type of allergy is rare and serious reactions are very rare. The body's immune system produces immunoglobulin E (IgE - an antibody) and histamine in response to contact with the allergen. The specific symptoms that can result can vary considerably amongst patients e.g. skin, respiratory and behavioral symptoms.
• Food Allergy - pineapple: A pineapple allergy is an adverse reaction by the body's immune system to pineapples or food containing pineapple. The body's immune system produces immunoglobulin E (IgE - an antibody) and histamine in response to contact with the allergen. The specific symptoms that can result can vary considerably amongst patients from a severe anaphylactic reaction to asthma, abdominal symptoms, eczema or headaches.
• Food Allergy - plantain: A plantain allergy is an adverse reaction by the body's immune system to plantain or food containing plantain. The body's immune system produces immunoglobulin E (IgE - an antibody) and histamine in response to contact with the allergen. The specific symptoms that can result can vary considerably amongst patients from a severe anaphylactic reaction to asthma, abdominal symptoms, eczema or headaches.
• Food Allergy - plum: A plum allergy is an adverse reaction by the body's immune system to plums or food containing plums. The body's immune system produces immunoglobulin E (IgE - an antibody) and histamine in response to contact with the allergen. The specific symptoms that can result can vary considerably amongst patients from a severe anaphylactic reaction to asthma, abdominal symptoms, eczema or headaches.
• Food Allergy - pomegranates: A pomegranate allergy is an adverse reaction by the body's immune system to pomegranates or food containing pomegranates. This type of allergy is rare and serious reactions are very rare. The specific symptoms that can result can vary considerably amongst patients e.g. skin, respiratory and behavioral symptoms.
• Food Allergy - potato: A potato allergy is an adverse reaction by the body's immune system to potato or food containing potato. This type of allergy is rare and severe reactions are even rarer. The body's immune system produces immunoglobulin E (IgE - an antibody) and histamine in response to contact with the allergen. The specific symptoms that can result can vary considerably amongst patients from a severe anaphylactic reaction to asthma, abdominal symptoms, eczema or headaches.
• Food Allergy - pumpkin: A pumpkin allergy is an adverse reaction by the body's immune system to pumpkin or food containing pumpkin. This type of allergy is rare and serious reactions are very rare. The body's immune system produces immunoglobulin E (IgE - an antibody) and histamine in response to contact with the allergen. The specific symptoms that can result can vary considerably amongst patients e.g. skin, respiratory and behavioral symptoms.
• Food Allergy - rice: A rice allergy is an adverse reaction by the body's immune system to rice or food containing rice. The body's immune system produces immunoglobulin E (IgE - an antibody) and histamine in response to contact with the allergen. The specific symptoms that can result can vary considerably amongst patients from a severe anaphylactic reaction to asthma, abdominal symptoms, eczema or headaches.
• Food Allergy - rye: A rye allergy is an adverse reaction by the body's immune system to rye or food containing rye. This type of allergy is rare and severe reactions are even rarer. The body's immune system produces immunoglobulin E (IgE - an antibody) and histamine in response to contact with the allergen. The specific symptoms that can result can vary considerably amongst patients from a severe anaphylactic reaction to asthma, abdominal symptoms, eczema or headaches.
• Food Allergy - salmon: A salmon allergy is an adverse reaction by the body's immune system to salmon or food containing salmon. The body's immune system produces immunoglobulin E (IgE - an antibody) and histamine in response to contact with the allergen. The specific symptoms that can result can vary considerably amongst patients from a severe anaphylactic reaction to asthma, abdominal symptoms, eczema or headaches.
• Food Allergy - scallop: A scallop allergy is an adverse reaction by the body's immune system to scallops or food containing scallops. The body's immune system produces immunoglobulin E (IgE - an antibody) and histamine in response to contact with the allergen. The specific symptoms that can result can vary considerably amongst patients from a severe anaphylactic reaction to asthma, abdominal symptoms, eczema or headaches.
• Food Allergy - sesame: A sesame allergy is an adverse reaction by the body's immune system to sesame or food containing sesame. This type of allergy is rare and severe reactions are even rarer. The body's immune system produces immunoglobulin E (IgE - an antibody) and histamine in response to contact with the allergen. The specific symptoms that can result can vary considerably amongst patients from a severe anaphylactic reaction to asthma, abdominal symptoms, eczema or headaches.
• Food Allergy - shellfish: A shellfish allergy is an adverse reaction by the body's immune system to shellfish or food containing shellfish. The body's immune system produces immunoglobulin E (IgE - an antibody) and histamine in response to contact with the allergen. The specific symptoms that can result can vary considerably amongst patients from a severe anaphylactic reaction to asthma, abdominal symptoms, eczema or headaches.
• Food Allergy - shrimp: A shrimp allergy is an adverse reaction by the body's immune system to shrimp or food containing shrimp. The body's immune system produces immunoglobulin E (IgE - an antibody) and histamine in response to contact with the allergen. The specific symptoms that can result can vary considerably amongst patients from a severe anaphylactic reaction to asthma, abdominal symptoms, eczema or headaches.
• Food Allergy - snail: A snail allergy is an adverse reaction by the body's immune system to snails or food containing snails. The body's immune system produces immunoglobulin E (IgE - an antibody) and histamine in response to contact with the allergen. The specific symptoms that can result can vary considerably amongst patients from a severe anaphylactic reaction to asthma, abdominal symptoms, eczema or headaches.
• Food Allergy - soy: A soy allergy is an adverse reaction by the body's immune system to soy or food containing soy. The body's immune system produces immunoglobulin E (IgE - an antibody) and histamine in response to contact with the allergen. The specific symptoms that can result can vary considerably amongst patients from a severe anaphylactic reaction to asthma, abdominal symptoms, eczema or headaches.
• Food Allergy - soybean: A soybean allergy is an adverse reaction by the body's immune system to soybean or food containing soybean. The body's immune system produces immunoglobulin E (IgE - an antibody) and histamine in response to contact with the allergen. The specific symptoms that can result can vary considerably amongst patients from a severe anaphylactic reaction to asthma, abdominal symptoms, eczema or headaches.
• Food Allergy - spices: A spice allergy is an adverse reaction by the body's immune system to spices or food containing spices. This type of allergy is rare and serious reactions are very rare. The body's immune system produces immunoglobulin E (IgE - an antibody) and histamine in response to contact with the allergen. The specific symptoms that can result can vary considerably amongst patients e.g. skin, respiratory and behavioral symptoms.
• Food Allergy - strawberry: A strawberry allergy is an adverse reaction by the body's immune system to strawberries or food containing strawberries. The body's immune system produces immunoglobulin E (IgE - an antibody) and histamine in response to contact with the allergen. The specific symptoms that can result can vary considerably amongst patients from a severe anaphylactic reaction to asthma, abdominal symptoms, eczema or headaches.
• Food Allergy - sulfite: A sulfite allergy is an adverse reaction by the body's immune system to sulfite or food containing sulfite. The body's immune system produces immunoglobulin E (IgE - an antibody) and histamine in response to contact with the allergen. The specific symptoms that can result can vary considerably amongst patients from a severe anaphylactic reaction to asthma, abdominal symptoms, eczema or headaches.
• Food Allergy - sunflower seeds: A sunflower seed allergy is an adverse reaction by the body's immune system to sunflower seeds or food containing sunflower seeds. This type of allergy is rare and serious reactions are very rare. The specific symptoms that can result can vary considerably amongst patients e.g. skin, respiratory and behavioral symptoms.
• Food Allergy - thyme: A thyme allergy is an adverse reaction by the body's immune system to thyme or food containing thyme. This type of allergy is rare and serious reactions are very rare. The body's immune system produces immunoglobulin E (IgE - an antibody) and histamine in response to contact with the allergen. The specific symptoms that can result can vary considerably amongst patients e.g. skin, respiratory and behavioral symptoms.
• Food Allergy - tomato: A tomato allergy is an adverse reaction by the body's immune system to tomatoes or food containing tomatoes. The body's immune system produces immunoglobulin E (IgE - an antibody) and histamine in response to contact with the allergen. The specific symptoms that can result can vary considerably amongst patients from a severe anaphylactic reaction to asthma, abdominal symptoms, eczema or headaches.
• Food Allergy - tree nuts: A tree nut allergy is an adverse reaction by the body's immune system to tree nuts or food containing tree nuts. The body's immune system produces immunoglobulin E (IgE - an antibody) and histamine in response to contact with the allergen. The specific symptoms that can result can vary considerably amongst patients from a severe anaphylactic reaction to asthma, abdominal symptoms, eczema or headaches.
• Food Allergy - tuna: A tuna allergy is an adverse reaction by the body's immune system to tuna or food containing tuna. This type of allergy is rare and serious reactions are very rare. The body's immune system produces immunoglobulin E (IgE - an antibody) and histamine in response to contact with the allergen. The specific symptoms that can result can vary considerably amongst patients e.g. skin, respiratory and behavioral symptoms.
• Food Allergy - turnip: A turnip allergy is an adverse reaction by the body's immune system to turnip or food containing turnip. The body's immune system produces immunoglobulin E (IgE - an antibody) and histamine in response to contact with the allergen. The specific symptoms that can result can vary considerably amongst patients from a severe anaphylactic reaction to asthma, abdominal symptoms, eczema or headaches.
• Food Allergy - turtle: A turtle allergy is an adverse reaction by the body's immune system to the ingestion of turtle meat. This type of allergy is rare and serious reactions are very rare. The specific symptoms that can result can vary considerably amongst patients e.g. skin, respiratory and behavioral symptoms.
• Food Allergy - vegetable oil: A vegetable oil allergy is an adverse reaction by the body's immune system to vegetable oil or food containing vegetable oil. This type of allergy is rare and serious reactions are very rare. The body's immune system produces immunoglobulin E (IgE - an antibody) and histamine in response to contact with the allergen. The specific symptoms that can result can vary considerably amongst patients e.g. skin, respiratory and behavioral symptoms.
• Food Allergy - walnuts: A walnut allergy is an adverse reaction by the body's immune system to walnuts or food containing walnuts. The body's immune system produces immunoglobulin E (IgE - an antibody) and histamine in response to contact with the allergen. The specific symptoms that can result can vary considerably amongst patients from a severe anaphylactic reaction to asthma, abdominal symptoms, eczema or headaches.
• Food Allergy - watermelon: A watermelon allergy is an adverse reaction by the body's immune system to melons or food containing watermelons. This type of allergy is rare and serious reactions are very rare. The specific symptoms that can result can vary considerably amongst patients e.g. skin, respiratory and behavioral symptoms.
• Food Allergy - wheat: A wheat allergy is an adverse reaction by the body's immune system to wheat or food containing wheat. The body's immune system produces immunoglobulin E (IgE - an antibody) and histamine in response to contact with the allergen. The specific symptoms that can result can vary considerably amongst patients from a severe anaphylactic reaction to asthma, abdominal symptoms, eczema or headaches.
• Food Allergy - zucchini: A zucchini allergy is an adverse reaction by the body's immune system to zucchini or food containing zucchini. This type of allergy is rare and serious reactions are very rare. The body's immune system produces immunoglobulin E (IgE - an antibody) and histamine in response to contact with the allergen. The specific symptoms that can result can vary considerably amongst patients e.g. skin, respiratory and behavioral symptoms.
• Fresh Mangrove caterpillar poisoning: Contact with the poisonous hairs or spines of the Fresh Mangrove caterpillar can cause skin rashes or even a hypersensitivity reaction in some cases.
• Ginger lily poisoning: The ginger lily is a perennial herb with reed-like stems. The plant originated in Australia and Asia and is often used as an ornamental garden plant. The leaves, roots and stems of the plant contain chemicals which can cause symptoms if eaten. Skin exposure can also result in minor skin irritation. The plant is considered to have a relatively low level of toxicity.
• Glaucoma: A condition which affects the eye and characterized by an increase in the intraocular pressure
• Gonorrhea: Common sexually transmitted disease often without symptoms.
• Goose allergy: A goose allergy is an adverse reaction by the body's immune system to geese. The allergy is usually associated with the skin, feathers or excrement of the goose. The body's immune system produces immunoglobulin E (IgE - an antibody) and histamine in response to contact with the allergen. The specific symptoms that can result can vary considerably amongst patients e.g. skin and respiratory symptoms.
• Grapeleaf skeletonizer caterpillar poisoning: Contact with the poisonous hairs or spines of the grapeleaf skeletonizer caterpillar can cause skin rashes or even a hypersensitivity reaction in some cases.
• Grass pollen allergy: A grass pollen allergy is an adverse reaction by the body's immune system to pollen produced by various grasses. The specific symptoms that can result can vary amongst patients.
• Green Lynx spider poisoning: The Green Lynx spider is a green spider most common in Mexico and Southern US. The spider can squirt (up to 40cm) it's venom from inside the mouth or deliver it through the bite.
• Gypsy moth caterpillar poisoning: Contact with the poisonous hairs or spines of the Gypsy moth caterpillar can cause skin rashes or even a hypersensitivity reaction in some cases.
• HIV/AIDS: HIV is a sexually transmitted virus and AIDS is the progressive immune failure that HIV causes.
• Hangover: Condition following excessive alcohol consumption.
• Hay fever: A seasonal condition which is a form of allergic rhinitis
• Heerfordt syndrome: A disorder sometimes associated with sarcoidosis and characterized by inflammation of the uvea of the eye, enlarged salivary gland, fever and facial paralysis.
• Helminth infections: The infection by a parasitic worm
• Hemorragic fever with renal syndrome: A group of infectious diseases that involve bleeding, fever and kidney problems. Examples of viruses that can cause such infectious diseases include Hantan virus, Puumala virus and Seoul virus. Examples of diseases caused by viruses in this group includes epidemic nephritis, Hantaan fever and Songo fever. The virus is usually transmitted to human by rodents or biting insects such as mosquitos. The severity and range of symptoms is determined by the particular virus involved.
• Heroin dependence: The physical and psychological dependence to the recreational drug heroin
• Herpes: Virus with one subtype causing cold sores and another causing genital herpes.
• Herpetic keratitis: A corneal inflammation due to a herpes virus - either herpes simplex or herpes zoster virus.
• Hickory tussock moth caterpillar poisoning: Contact with the poisonous hairs or spines of the Hickory tussock moth caterpillar can cause skin rashes or even a hypersensitivity reaction in some cases.
• House dust allergy: House dust allergy is an adverse reaction by the body's immune system to allergens dound in household dust such as pet dander, mold and dust mites. The specific symptoms that can result can vary amongst patients.
• Hyper IgE: Inherited immunodeficiency disorders involving excessive production of IgE and frequent bacterial (staphylococcal) infections mainly involving the skin as well as other problems. Recessively inherited forms of the condition tend to be more serious with bone problems.
• Hyperemia: An increased amount of blood in a body part due to such things as inflammation or obstruction preventing the blood from flowing out.
• Hypopigmented lesions in children:
• IgE mediated gastrointestinal food allergy: An adverse reaction by the body's immune system to food that is driven by IgE. IgE antibodies specific to food molecules bind with the circulating food allergen and cause the release of immune response molecules such as cytokines. Symptoms usually occur soon after exposure to the allergen and usually cause skin symptoms. Severe cases may result in anaphylaxis. It is associated with allergic conditions such as pollen-food allergy and other oral allergies and immediate gastrointestinal hypersensitivity.
• Inclusion conjunctivitis: Inflammation of the conjunctiva of the eye by the bacterium Chlamydia trachomatis which is a sexually transmitted pathogen. The infection can occur in newborns while passing through an infected birth canal. Adult infections tend to be transmitted to the eye from the infected genitals via the hands. Infected swimming ppols or hot tubs may also be a source of infection.
• Infectious meningitis: Infectious meningitis is meningitis caused by bacterial, viral, or protozoan infection. Most of the agents known to cause meningitis are infectious, but very few people exposed to them will get meningitis. Those at greatest danger include people with AIDS, infants, transplant patients, and others whose immune systems may be compromised.
• Iridocyclitis: Inflammation of the iris and ciliary body (just behind the iris) of the eye.
• Iritis: Inflammation of the iris
• Job syndrome: An immunodeficiency disorder characterized by excessive production of IgE and frequent bacterial infections mainly involving the skin.
• Kawanism: Kava can be used as a herbal agent to treat anxiety, restlessness, stress and sleeping problems due to anxiety. The herbal agent contains chemicals including alpha-pyrone which can cause various symptoms if it is taken for long periods of time.
• Kawasaki disease: A childhood illness that generally affects the skin, mouth and lymph nodes.
• Keratitis: Cornea inflammation.
• Keratitis fugax hereditaria: An inherited eye disorder involving recurring corneal inflammation. The number of attacks is variable with anywhere from 2 to even 8 or more episodes occurring each year. The attacks become less severe and less frequent after the age of 50. Symptoms can persist from days to weeks.
• Keratitis, hereditary: A very rare inherited eye disorder characterized by corneal inflammation. The severity of the disorder is variable.
• Keratosis palmoplantaris - corneal dystrophy: A rare condition where a deficiency of a liver enzyme (tyrosinase aminotransferase) causes tyrosine levels in the blood to increase and result in eye problems, mental retardation and horny skin lesions which develop on pressure points on the hands and feet.
• Latex allergies: When a person has an allergic reaction to latex
• Lepidopterism: A systemic illness caused by contact with certain poisonous caterpillar spines or urticating hairs.
• Leptospirosis: Bacterial infection usually caught from animal urine.
• Lyme disease: Lyme disease is an emerging infectious disease caused by at least three species of bacteria belonging to the genus Borrelia.
• Marijuana - Teratogenic Agent: There is evidence to indicate that exposure to Marijuana during pregnancy may have a teratogenic effect on the fetus. A teratogen is a substance that can cause birth defects. The likelihood and severity of defects may be affected by the level of exposure and the stage of pregnancy that the exposure occurred at.
• Marijuana Smoking: Smoking the leaves of a plant drug called cannabis.
• Marijuana abuse: Illicit depressant/hallucinogenic drug
• Marijuana addiction: Marijuana addiction is the uncontrollable desire to use marijuana on a regular basis. Frequent use leads to an increased tolerance to the drug so higher and higher doses are required to achieve the desired euphoric feeling.
• Mayapple poisoning: The Mayapple is a small flowering plant which is often found growing naturally. It bears small single flowers and apple-like fruit which turns yellow when ripe. The unripe fruit and leaves contain a chemical called podophyllin which can cause poisoning if eaten. The plant is considered highly toxic and death can occur if sufficient quantities are eaten. The leaves, roots and unripe fruit are toxic but the ripe fruit is edible. The plant has been used to treat venereal warts.
• Measles: Once common viral infection now rare due to vaccination.
• Meibomitis: Inflammation of the glands in the eyelids (called Meibomian glands) that help lubricate the eye
• Meningitis: Infection of the membrane around the brain (as a symptom)
• Mesquite Buck moth caterpillar poisoning: Contact with the poisonous hairs or spines of the Mesquite Buck moth caterpillar can cause skin rashes or even a hypersensitivity reaction in some cases.
• Mesquite stinger caterpillar poisoning: Contact with the poisonous hairs or spines of the Mesquite stinger caterpillar can cause skin rashes or even a hypersensitivity reaction in some cases.
• Mold allergies: Allergies to airborne or household molds.
• Mold allergy: A mold allergy is an adverse reaction by the body's immune system to spores produced by a mold. Symptoms tend to occur in a seasonal pattern as spore production by molds tends to increase and decrease with changes in seasons. The specific symptoms that can result can vary amongst patients.
• Neonatal ophthalmitis: Eye discharge in newborns
• Newcastle Disease: A type of virus (paramyxovirus) that can infect many mammals, birds and humans. It most commonly affects poultry. Human infections can cause a mild illness and is generally only seen in poultry workers. There has been growing interest in using this virus to kill cancer cells.
• Non-Food Allergy - Aesculus pollen: An aesculus pollen allergy is an adverse reaction by the body's immune system to pollen produced by aesculus trees. The specific symptoms that can result can vary amongst patients.
• Non-Food Allergy - Alder: An alder allergy is an adverse reaction by the body's immune system to pollen produced by alder. The body's immune system produces immunoglobulin E (IgE - an antibody) and histamine in response to contact with the allergen. The specific symptoms that can result can vary amongst patients.
• Non-Food Allergy - Alder tree: An alder tree allergy is an adverse reaction by the body's immune system to pollen produced by Alder trees. The pollen from alder trees is considered to have a relatively moderate to high potential for allergy. The body's immune system produces immunoglobulin E (IgE - an antibody) and histamine in response to contact with the allergen. The specific symptoms that can result can vary amongst patients.
• Non-Food Allergy - American feverfew: An American feverfew allergy is an adverse reaction by the body's immune system to pollen produced by a weed called American feverfew. The pollen from American feverfew is considered to have a moderate potential for allergy. The specific symptoms that can result can vary amongst patients.
• Non-Food Allergy - Ash juniper tree pollen: An ash juniper tree pollen allergy is an adverse reaction by the body's immune system to pollen produced by ash juniper trees. The specific symptoms that can result can vary amongst patients.
• Non-Food Allergy - Beet: A beet allergy is an adverse reaction by the body's immune system to pollen produced by beet plants. The pollen from beet plants is considered to have a relatively low potential for allergy. The specific symptoms that can result can vary amongst patients.
• Non-Food Allergy - Bermuda grass: A Bermuda grass allergy is an adverse reaction by the body's immune system to pollen produced by Bermuda grass. The body's immune system produces immunoglobulin E (IgE - an antibody) and histamine in response to contact with the allergen. The specific symptoms that can result can vary amongst patients.
• Non-Food Allergy - Bluegrass: A bluegrass pollen allergy is an adverse reaction by the body's immune system to pollen produced by bluegrass. The specific symptoms that can result can vary amongst patients.
• Non-Food Allergy - Canary grass: A canary grass allergy is an adverse reaction by the body's immune system to pollen produced by canary grass. The specific symptoms that can result can vary amongst patients.
• Non-Food Allergy - Capeweed: A capeweed allergy is an adverse reaction by the body's immune system to pollen produced by capeweed which is usually found in Australia. The specific symptoms that can result can vary amongst patients.
• Non-Food Allergy - Cypress tree: A cypress tree allergy is an adverse reaction by the body's immune system to pollen produced by cypress trees. The pollen from cypress trees is considered to have a relatively moderate to high potential for allergy. The body's immune system produces immunoglobulin E (IgE - an antibody) and histamine in response to contact with the allergen. The specific symptoms that can result can vary amongst patients.
• Non-Food Allergy - English plantain: An English plantain allergy is an adverse reaction by the body's immune system to pollen produced by English plantain. The body's immune system produces immunoglobulin E (IgE - an antibody) and histamine in response to contact with the allergen. The specific symptoms that can result can vary amongst patients.
• Non-Food Allergy - European Ash tree: A European ash tree allergy is an adverse reaction by the body's immune system to pollen produced by the European Ash tree. The specific symptoms that can result can vary amongst patients.
• Non-Food Allergy - Hickory tree: A hickory tree allergy is an adverse reaction by the body's immune system to pollen produced by hickory trees. The body's immune system produces immunoglobulin E (IgE - an antibody) and histamine in response to contact with the allergen. The specific symptoms that can result can vary amongst patients.
• Non-Food Allergy - Hornbeam tree: A hornbeam tree allergy is an adverse reaction by the body's immune system to pollen produced by hornbeam trees. The pollen from hornbeam trees is considered to have a moderate potential for allergy. The body's immune system produces immunoglobulin E (IgE - an antibody) and histamine in response to contact with the allergen. The specific symptoms that can result can vary amongst patients.
• Non-Food Allergy - Johnson grass: A Johnson grass allergy is an adverse reaction by the body's immune system to pollen produced by Johnson grass. The body's immune system produces immunoglobulin E (IgE - an antibody) and histamine in response to contact with the allergen. The specific symptoms that can result can vary amongst patients.
• Non-Food Allergy - Kentucky bluegrass: A Kentucky bluegrass allergy is an adverse reaction by the body's immune system to pollen produced by Kentucky bluegrass. The body's immune system produces immunoglobulin E (IgE - an antibody) and histamine in response to contact with the allergen. The specific symptoms that can result can vary amongst patients.
• Non-Food Allergy - Marsh Elder: A marsh elder allergy is an adverse reaction by the body's immune system to pollen produced by marsh elder which is a type of weed. The pollen from Marsh elder is considered to have a relatively low potential for allergy. The specific symptoms that can result can vary amongst patients.
• Non-Food Allergy - Monteroy pine tree: A Monteroy pine tree allergy is an adverse reaction by the body's immune system to pollen produced by Monteroy pine tree. The specific symptoms that can result can vary amongst patients.
• Non-Food Allergy - Oak tree: An oak tree allergy is an adverse reaction by the body's immune system to pollen produced by oak trees. The pollen from oak trees is considered to have a moderate potential for allergy. The body's immune system produces immunoglobulin E (IgE - an antibody) and histamine in response to contact with the allergen. The specific symptoms that can result can vary amongst patients.
• Non-Food Allergy - Olea tree pollen: An Olea treepollen allergy is an adverse reaction by the body's immune system to pollen produced by Olea trees. The specific symptoms that can result can vary amongst patients.
• Non-Food Allergy - Orache (Atriplex): An orache (Atriplex) allergy is an adverse reaction by the body's immune system to pollen produced by weeds called orache. The pollen from Orache is considered to have a relatively low potential for allergy. The specific symptoms that can result can vary amongst patients.
• Non-Food Allergy - Patterson's curse: A Patterson's curse allergy is an adverse reaction by the body's immune system to pollen produced by a weed called Patterson's curse. The pollen from Patterson's curse is considered to have a relatively high potential for allergy. The specific symptoms that can result can vary amongst patients.
• Non-Food Allergy - Pecan trees: A pecan tree allergy is an adverse reaction by the body's immune system to pollen produced by pecan trees. The body's immune system produces immunoglobulin E (IgE - an antibody) and histamine in response to contact with the allergen. The specific symptoms that can result can vary amongst patients.
• Non-Food Allergy - Rapeseed oil: A rapeseed oil allergy is an adverse reaction by the body's immune system to pollen produced by rapeseed weeds. The body's immune system produces immunoglobulin E (IgE - an antibody) and histamine in response to contact with the allergen. The specific symptoms that can result can vary amongst patients.
• Non-Food Allergy - Redtop grass: A Redtop grass allergy is an adverse reaction by the body's immune system to pollen produced by Redtop grass. The body's immune system produces immunoglobulin E (IgE - an antibody) and histamine in response to contact with the allergen. The specific symptoms that can result can vary amongst patients.
• Non-Food Allergy - Ryegrass pollen: A ryegrass allergy is an adverse reaction by the body's immune system to pollen produced by ryegrass. The specific symptoms that can result can vary amongst patients.
• Non-Food Allergy - Sorrel: A sorrel allergy is an adverse reaction by the body's immune system to pollen produced by sorrel which is a type of herb. The pollen from sorrel is considered to have a relatively moderate to high potential for allergy. The body's immune system produces immunoglobulin E (IgE - an antibody) and histamine in response to contact with the allergen. The specific symptoms that can result can vary amongst patients.
• Non-Food Allergy - Sunflower pollen: A sunflower pollen allergy is an adverse reaction by the body's immune system to pollen produced by sunflowers. The specific symptoms that can result can vary amongst patients.
• Non-Food Allergy - Velvet grass: A velvet grass allergy is an adverse reaction by the body's immune system to pollen produced by velvet grass. The specific symptoms that can result can vary amongst patients.
• Non-Food Allergy - White cedar tree: A white cedar tree allergy is an adverse reaction by the body's immune system to pollen produced by the white cedar tree. The specific symptoms that can result can vary amongst patients.
• Non-Food Allergy - amaranthus: An amaranthus allergy is an adverse reaction by the body's immune system to pollen produced by a weed called amaranthus. The pollen from amaranthus is considered to have a relatively low potential for allergy. The specific symptoms that can result can vary amongst patients.
• Non-Food Allergy - ash tree: An ash tree grass allergy is an adverse reaction by the body's immune system to pollen produced by ash trees. The pollen from ash trees is considered to have a relatively moderate to high potential for allergy. The body's immune system produces immunoglobulin E (IgE - an antibody) and histamine in response to contact with the allergen. The specific symptoms that can result can vary amongst patients.
• Non-Food Allergy - beech tree: A beech tree allergy is an adverse reaction by the body's immune system to pollen produced by beech trees. The pollen from beech trees is considered to have a relatively low to moderate potential for allergy. The body's immune system produces immunoglobulin E (IgE - an antibody) and histamine in response to contact with the allergen. The specific symptoms that can result can vary amongst patients.
• Non-Food Allergy - birch tree: A birch tree allergy is an adverse reaction by the body's immune system to pollen produced by birch trees. The pollen from birch trees is considered to have a relatively high potential for allergy. The body's immune system produces immunoglobulin E (IgE - an antibody) and histamine in response to contact with the allergen. The specific symptoms that can result can vary amongst patients.
• Non-Food Allergy - box elder tree: A box elder tree allergy is an adverse reaction by the body's immune system to pollen produced by box elder trees. The body's immune system produces immunoglobulin E (IgE - an antibody) and histamine in response to contact with the allergen. The specific symptoms that can result can vary amongst patients.
• Non-Food Allergy - chlorine: A chlorine allergy is an adverse reaction by the body's immune system to chlroine. The body's immune system produces immunoglobulin E (IgE - an antibody) and histamine in response to contact with the allergen. The specific symptoms that can result can vary amongst patients.
• Non-Food Allergy - cocklebur: A cocklebur allergy is an adverse reaction by the body's immune system to pollen produced by a plant called cocklebur. The specific symptoms that can result can vary amongst patients.
• Non-Food Allergy - daisy: A daisy allergy is an adverse reaction by the body's immune system to pollen produced by daisies. The pollen from daisies is considered to have a relatively low potential for allergy. The specific symptoms that can result can vary amongst patients.
• Non-Food Allergy - dandelion pollen: A dandelion allergy is an adverse reaction by the body's immune system to pollen produced by dandelions. The specific symptoms that can result can vary amongst patients.
• Non-Food Allergy - dust mites: A mite allergy is an adverse reaction by the body's immune system to dust mites. The body's immune system produces immunoglobulin E (IgE - an antibody) and histamine in response to contact with the allergen. The specific symptoms that can result can vary amongst patients.
• Non-Food Allergy - elm tree: An elm tree allergy is an adverse reaction by the body's immune system to pollen produced by elm trees. The body's immune system produces immunoglobulin E (IgE - an antibody) and histamine in response to contact with the allergen. The specific symptoms that can result can vary amongst patients.
• Non-Food Allergy - fungus, Alternaria: An Alternaria fungus allergy is an adverse reaction by the body's immune system to spores produced by a fungus called Alternaria. Alternaria is a common outdoor mold and can cause severe asthmatic symptoms as well as other allergy symptoms. Symptoms tend to occur in a seasonal pattern as spore production by molds tends to increase and decrease with changes in seasons. The specific symptoms that can result can vary amongst patients.
• Non-Food Allergy - fungus, Aspergillus spp: An Aspergillus spp fungus allergy is an adverse reaction by the body's immune system to spores produced by a fungus called Aspergillus spp. Aspergillus is a common indoor and outdoor mold. Symptoms tend to occur in a seasonal pattern as spore production by molds tends to increase and decrease with changes in seasons. The specific symptoms that can result can vary amongst patients.
• Non-Food Allergy - fungus, Aureobasidium (Pullularia): A Aureobasidium fungus allergy is an adverse reaction by the body's immune system to spores produced by a fungus called Aureobasidium. Aureobasidium is a common outdoor mold often found on paper, lumber and painted objects. Symptoms tend to occur in a seasonal pattern as spore production by molds tends to increase and decrease with changes in seasons. The specific symptoms that can result can vary amongst patients.
• Non-Food Allergy - fungus, Candida albicans: A Candida albicans fungus allergy is an adverse reaction by the body's immune system to spores produced by a fungus called Candida albicans. Symptoms tend to occur in a seasonal pattern as spore production by molds tends to increase and decrease with changes in seasons. The specific symptoms that can result can vary amongst patients.
• Non-Food Allergy - fungus, Cladosporium: A Cladosporium fungus allergy is an adverse reaction by the body's immune system to spores produced by a fungus called Cladosporium. Cladosporium is one of the most common outdoor airborne molds. Symptoms tend to occur in a seasonal pattern as spore production by molds tends to increase and decrease with changes in seasons. The specific symptoms that can result can vary amongst patients.
• Non-Food Allergy - fungus, Epicoccum: An Epicoccum fungus allergy is an adverse reaction by the body's immune system to spores produced by a fungus called Epicoccum. Epicoccum tends to be found in grassland and agricultural areas. Symptoms tend to occur in a seasonal pattern as spore production by molds tends to increase and decrease with changes in seasons. The specific symptoms that can result can vary amongst patients.
• Non-Food Allergy - fungus, Fusarium: A Fusarium fungus allergy is an adverse reaction by the body's immune system to spores produced by a fungus called Fusarium. Fusarium is often found on rotting plants. Symptoms tend to occur in a seasonal pattern as spore production by molds tends to increase and decrease with changes in seasons. The specific symptoms that can result can vary amongst patients.
• Non-Food Allergy - fungus, Helminthosporium: A Helminthosporium fungus allergy is an adverse reaction by the body's immune system to spores produced by a fungus called Helminthosporium. Helminthosporium is a fungus found more often in warmer climates. Symptoms tend to occur in a seasonal pattern as spore production by molds tends to increase and decrease with changes in seasons. The specific symptoms that can result can vary amongst patients.
• Non-Food Allergy - fungus, Mucor: A Mucor fungus allergy is an adverse reaction by the body's immune system to spores produced by a fungus called Mucor. Mucor is a relatively uncommon fungus but can be found on decaying vegetation and damp indoor areas. Symptoms tend to occur in a seasonal pattern as spore production by molds tends to increase and decrease with changes in seasons. The specific symptoms that can result can vary amongst patients.
• Non-Food Allergy - fungus, Penicillium: A Penicillium fungus allergy is an adverse reaction by the body's immune system to spores produced by a fungus called Penicillium. Penicillium is a common indoor mold and allergy to this fungus is unrelated to a penicillin allergy. Symptoms tend to occur in a seasonal pattern as spore production by molds tends to increase and decrease with changes in seasons. The specific symptoms that can result can vary amongst patients.
• Non-Food Allergy - fungus, Phoma: A Phoma fungus allergy is an adverse reaction by the body's immune system to spores produced by a fungus called Phoma. Phoma is an outdoor mold which is predominant during wet periods. Symptoms tend to occur in a seasonal pattern as spore production by molds tends to increase and decrease with changes in seasons. The specific symptoms that can result can vary amongst patients.
• Non-Food Allergy - fungus, Rhizopus: A Rhizopus fungus allergy is an adverse reaction by the body's immune system to spores produced by a fungus called Rhizopus. Rhizopus is relatively uncommon but can be found on decaying vegetation and damp indoor areas. Symptoms tend to occur in a seasonal pattern as spore production by molds tends to increase and decrease with changes in seasons. The specific symptoms that can result can vary amongst patients.
• Non-Food Allergy - fungus, smut: A smut allergy is an adverse reaction by the body's immune system to spores produced by a fungus called smut. Smut is common in agricultural areas. Symptoms tend to occur in a seasonal pattern as spore production by molds tends to increase and decrease with changes in seasons. The specific symptoms that can result can vary amongst patients.
• Non-Food Allergy - goosefoot: A goosefoot allergy is an adverse reaction by the body's immune system to pollen produced by a weed called goose foot. The specific symptoms that can result can vary amongst patients.
• Non-Food Allergy - grass: A grass allergy is an adverse reaction by the body's immune system to grass or pollen produced by grass. Grasses are considered to have a relatively high potential for allergy. The body's immune system produces immunoglobulin E (IgE - an antibody) and histamine in response to contact with the allergen. The specific symptoms that can result can vary amongst patients.
• Non-Food Allergy - guayule: A guayule allergy is an adverse reaction by the body's immune system to pollen produced by guayule which is a type of weed. The pollen from guayule is considered to have a relatively low potential for allergy. The specific symptoms that can result can vary amongst patients.
• Non-Food Allergy - hazel tree: A hazel tree allergy is an adverse reaction by the body's immune system to pollen produced by hazel trees. The pollen from hazel trees is considered to have a relatively moderate to high potential for allergy. The body's immune system produces immunoglobulin E (IgE - an antibody) and histamine in response to contact with the allergen. The specific symptoms that can result can vary amongst patients.
• Non-Food Allergy - hemp: A hemp allergy is an adverse reaction by the body's immune system to pollen produced by the hemp plant. The specific symptoms that can result can vary amongst patients.
• Non-Food Allergy - hop shrub: A hop shrub allergy is an adverse reaction by the body's immune system to pollen produced by hop shrubs. The pollen from hop shrubs is considered to have a relatively low potential for allergy. The body's immune system produces immunoglobulin E (IgE - an antibody) and histamine in response to contact with the allergen. The specific symptoms that can result can vary amongst patients.
• Non-Food Allergy - horse chestnut tree: A horse chestnut tree allergy is an adverse reaction by the body's immune system to pollen produced by horse chestnut trees. The pollen from horse chestnut trees is considered to have a relatively low to moderate potential for allergy. The body's immune system produces immunoglobulin E (IgE - an antibody) and histamine in response to contact with the allergen. The specific symptoms that can result can vary amongst patients.
• Non-Food Allergy - maple tree: A maple tree allergy is an adverse reaction by the body's immune system to pollen produced by maple trees. The pollen from maple trees is considered to have a relatively low to moderate potential for allergy. The body's immune system produces immunoglobulin E (IgE - an antibody) and histamine in response to contact with the allergen. The specific symptoms that can result can vary amongst patients.
• Non-Food Allergy - mountain cedar tree: A mountain cedar tree allergy is an adverse reaction by the body's immune system to pollen produced by mountain cedar trees. The body's immune system produces immunoglobulin E (IgE - an antibody) and histamine in response to contact with the allergen. The specific symptoms that can result can vary amongst patients.
• Non-Food Allergy - mugwort tree: A mugwort tree allergy is an adverse reaction by the body's immune system to pollen produced by mugwort trees. The pollen from mugwort trees is considered to have a relatively high potential for allergy. The body's immune system produces immunoglobulin E (IgE - an antibody) and histamine in response to contact with the allergen. The specific symptoms that can result can vary amongst patients.
• Non-Food Allergy - nettle: A nettle allergy is an adverse reaction by the body's immune system to pollen produced by nettle. The pollen from nettle is considered to have a relatively low potential for allergy. The specific symptoms that can result can vary amongst patients.
• Non-Food Allergy - olive tree: An olive tree allergy is an adverse reaction by the body's immune system to pollen produced by olive trees. The pollen from olive trees is considered to have a relatively high potential for allergy. The body's immune system produces immunoglobulin E (IgE - an antibody) and histamine in response to contact with the allergen. The specific symptoms that can result can vary amongst patients.
• Non-Food Allergy - orchard grass: An orchard grass allergy is an adverse reaction by the body's immune system to pollen produced by orchard grass. The body's immune system produces immunoglobulin E (IgE - an antibody) and histamine in response to contact with the allergen. The specific symptoms that can result can vary amongst patients.
• Non-Food Allergy - pigweed: A pigweed allergy is an adverse reaction by the body's immune system to pollen produced by pigweed. The body's immune system produces immunoglobulin E (IgE - an antibody) and histamine in response to contact with the allergen. The specific symptoms that can result can vary amongst patients.
• Non-Food Allergy - plane tree: A plane tree allergy is an adverse reaction by the body's immune system to pollen produced by plane trees. The pollen from plane trees is considered to have a moderate to high potential for allergy. The body's immune system produces immunoglobulin E (IgE - an antibody) and histamine in response to contact with the allergen. The specific symptoms that can result can vary amongst patients.
• Non-Food Allergy - plantago pollen: A plantago pollen allergy is an adverse reaction by the body's immune system to pollen produced by plantago which is a type of weed. The specific symptoms that can result can vary amongst patients.
• Non-Food Allergy - poplar tree pollen: A poplar tree pollen allergy is an adverse reaction by the body's immune system to pollen produced by poplar trees. The specific symptoms that can result can vary amongst patients.
• Non-Food Allergy - ragweed: A ragweed allergy is an adverse reaction by the body's immune system to pollen produced by ragweed. The pollen from ragweed is considered to have a relatively high potential for allergy. The body's immune system produces immunoglobulin E (IgE - an antibody) and histamine in response to contact with the allergen. The specific symptoms that can result can vary amongst patients.
• Non-Food Allergy - redroot: A redroot allergy is an adverse reaction by the body's immune system to pollen produced by redroot. The body's immune system produces immunoglobulin E (IgE - an antibody) and histamine in response to contact with the allergen. The specific symptoms that can result can vary amongst patients.
• Non-Food Allergy - sagebrush: A sagebrush allergy is an adverse reaction by the body's immune system to pollen produced by sagebrush. The body's immune system produces immunoglobulin E (IgE - an antibody) and histamine in response to contact with the allergen. The specific symptoms that can result can vary amongst patients.
• Non-Food Allergy - sweet chestnut tree: A sweet chestnut tree allergy is an adverse reaction by the body's immune system to pollen produced by sweet chestnut trees. The pollen from sweet chestnut trees is considered to have a relatively low to moderate potential for allergy. The body's immune system produces immunoglobulin E (IgE - an antibody) and histamine in response to contact with the allergen. The specific symptoms that can result can vary amongst patients.
• Non-Food Allergy - sweet vernal grass: A sweet vernal grass allergy is an adverse reaction by the body's immune system to pollen produced by sweet vernal grass. The body's immune system produces immunoglobulin E (IgE - an antibody) and histamine in response to contact with the allergen. The specific symptoms that can result can vary amongst patients.
• Non-Food Allergy - tilia tree pollen: A tilia tree pollen allergy is an adverse reaction by the body's immune system to pollen produced by tilia tree. The specific symptoms that can result can vary amongst patients.
• Non-Food Allergy - timothy grass: A timothy grass allergy is an adverse reaction by the body's immune system to pollen produced by timothy grass. The body's immune system produces immunoglobulin E (IgE - an antibody) and histamine in response to contact with the allergen. The specific symptoms that can result can vary amongst patients.
• Non-Food Allergy - tree pollen: A tree pollen allergy is an adverse reaction by the body's immune system to pollen produced by trees. The body's immune system produces immunoglobulin E (IgE - an antibody) and histamine in response to contact with the allergen. The specific symptoms that can result can vary amongst patients.
• Non-Food Allergy - tumble weed (Russian thistle): A tumble weed allergy is an adverse reaction by the body's immune system to pollen produced by tumble weed. The body's immune system produces immunoglobulin E (IgE - an antibody) and histamine in response to contact with the allergen. The specific symptoms that can result can vary amongst patients.
• Non-Food Allergy - wall pellitory: A wall pellitory allergy is an adverse reaction by the body's immune system to pollen produced by wall pellitory. The pollen from wall pellitory is considered to have a relatively high potential for allergy. The body's immune system produces immunoglobulin E (IgE - an antibody) and histamine in response to contact with the allergen. The specific symptoms that can result can vary amongst patients.
• Non-Food Allergy - walnut tree: A walnut tree allergy is an adverse reaction by the body's immune system to pollen produced by walnut trees. The pollen from walnut trees is considered to have a moderate potential for allergy. The body's immune system produces immunoglobulin E (IgE - an antibody) and histamine in response to contact with the allergen. The specific symptoms that can result can vary amongst patients.
• Non-Food Allergy - willow tree: A willow tree allergy is an adverse reaction by the body's immune system to pollen produced by willow trees. The pollen from willow trees is considered to have a relatively low potential for allergy. The body's immune system produces immunoglobulin E (IgE - an antibody) and histamine in response to contact with the allergen. The specific symptoms that can result can vary amongst patients.
• Non-Food Allergy - willow tree pollen: A willow tree pollen allergy is an adverse reaction by the body's immune system to pollen produced by willow trees. The specific symptoms that can result can vary amongst patients.
• Non-Specific Urethritis: Urethral infection usually sexually transmitted
• Ocular cicatricial pemphigoid: A rare chronic autoimmune eye condition that can result in blindness if not treated. The conjunctival and mucosal layers of the eye (inside of eyelid and outside of eye) become progressively inflamed and scarred. The condition can be very difficult to treat.
• Ocular vaccinia: Ocular vaccinia is a smallpox infection of the eye. The infection usually occurs through eye contact with a hand contaminated with the virus.
• Oleander caterpillar poisoning: Contact with the poisonous hairs or spines of the Oleander caterpillar can cause skin rashes or even a hypersensitivity reaction in some cases.
• Ollivier syndrome: Symptoms associated with a crush injury usually involving the chest or abdomen. The condition is observed in people being trampled in a crowd stampede.
• Omsk hemorrhagic fever: A hemorrhagic fever caused by a virus. A serious outbreak occurred in Omsk and hence the name. Transmission occurs through tick bites. The infection has two phases: the first acute phase involves symptoms such as fever, rash and muscle pain and the second phase occurs after a week or two and involves the central nervous system (e.g. delirium, convulsions).
• Ophthalmitis: Eye inflammation.
• Opioid addiction: An uncontrollable desire to use opioids on a regular basis. Opioids may may be prescribed by a physician for the purpose of pain relief but patients may become physically dependent on the drug and continue to obsessively use it even after the condition it was prescribed for has resolved. In other cases, opioid addiction results from the illicit use of the drug for recreational purposes. Frequent use leads to an increased tolerance to the drug so higher and higher doses are required to achieve the desired euphoric feeling. Examples of opioids includes morphine, heroin, oxycodone and fentanyl.
• Opium addiction: An uncontrollable desire to use opium on a regular basis. Opium may may be prescribed by a physician for the purpose of pain relief but patients may become physically dependent on the drug and continue to obsessively use it even after the condition it was prescribed for has resolved. In other cases, opium addiction results from the illicit use of the drug for recreational purposes. Frequent use leads to an increased tolerance to the drug so higher and higher doses are required to achieve the desired euphoric feeling.
• Orbit Tumour: Tumour growing in the eye socket (space behind or surrounding the eyeball); may be benign or malignant or due to secondary growth from another malignancy
• Orbital lymphangioma: A tumor that develops from lymph vessels around the eye.
• Orbital lymphoma: A tumor that develops in the soft tissue of the eye socket and can push against the eye causing problems with vision and eye movement.
• Oxycontin addiction: Oxycontin is a commonly prescribed pain killer which is recognized as carrying a high risk of addiction. Initial use of the drug may be to control chronic pain but patients may find themselves increasingly dependent on the drug and unable to stop its use. Other cases of addiction may occur when people deliberately and illegally misuse Oxycontin as a recreational drug.
• Oyster plant poisoning: The Oyster plant has long strappy leaves which are green on top and purple to green on the bottom. It bears small white flowers at the base of the leaves. It is often used indoors and outdoors as an ornamental plant. The plant sap can cause skin irritation and various symptoms if large quantities are eaten.
• Pain killer addiction: An uncontrollable desire to use pain-relieving medication on a regular basis. Pain killers are often prescribed for the treatment of sleeping problems but chronic use can lead to dependence on the drug. Frequent use leads to an increased tolerance to the drug so higher and higher doses are required to achieve the desired euphoric feeling.
• Pale tussock moth caterpillar poisoning: Contact with the poisonous hairs or spines of the Pale tussock moth caterpillar can cause skin rashes or even a hypersensitivity reaction in some cases.
• Paming moth caterpillar poisoning: Contact with the poisonous hairs or spines of the Paming moth caterpillar can cause skin rashes or even a hypersensitivity reaction in some cases.
• Panuveitis: Inflammation of the whole uvea. The uvea is the middle coat of the eye.
• Parakeet allergy: A parakeet allergy is an adverse reaction by the body's immune system to parakeets. The allergy is usually associated with the skin, feathers or excrement of the parakeet. The body's immune system produces immunoglobulin E (IgE - an antibody) and histamine in response to contact with the allergen. The specific symptoms that can result can vary considerably amongst patients e.g. skin and respiratory symptoms.
• Parrot allergy: A parrot allergy is an adverse reaction by the body's immune system to parrots. The allergy is usually associated with the skin, feathers or excrement of the parrot. The body's immune system produces immunoglobulin E (IgE - an antibody) and histamine in response to contact with the allergen. The specific symptoms that can result can vary considerably amongst patients e.g. skin and respiratory symptoms.
• Pasteurella multocida: An infectious disease caused by a bacterium called Pasteurella multocida. It is often transmitted through bites and scratches from pets and it can be found in mammals and fowl.
• Peruvian lily poisoning: Peruvian lily is a herbaceous flowering plant often used indoors and outdoors as an ornamental plant. The plant contains tuliposide which can cause severe skin and eye irritation upon exposure.
• Pet allergy: A pet allergy is an adverse reaction by the body's immune system to pets such as cats and dogs. The allergy is usually associated with the skin, saliva or urine of the animal. Animals frequently lick themselves which results in saliva sticking to the fur. Thus a person allergic to animals will often react to the fur even if it is not attached to the animal. Frequent washing of the animal may reduce symptoms. The body's immune system produces immunoglobulin E (IgE - an antibody) and histamine in response to contact with the allergen. The specific symptoms that can result can vary considerably amongst patients e.g. skin and respiratory symptoms.
• Pfiesteria piscicida infection: Pfiesteria piscicida is a tiny marine organism called a dinoflagellate that is found in waters where fresh and salt water mix e.g. at river mouths. It is believed to be responsible for killing fish as well as health problems in humans.
• Pfiesteria piscicida poisoning: Pfiesteria piscicida is an estuarine microorganism (dinoflagellate) that can cause illness in humans as well as fish. The particular toxin involved has not yet been identified. The microorganism may release toxins into the water or it may be aerosolized which can result in skin, eye and respiratory exposure. The condition is not contagious and they symptoms may vary considerably amongst patients.
• Pfiesteria poisoning: Pfiesteria is an estuarine microorganism (dinoflagellate) that can cause illness in humans as well as fish. The particular toxin involved has not yet been identified. The microorganism may release toxins into the water or it may be aerosolized which can result in skin, eye and respiratory exposure. The condition is not contagious and they symptoms may vary considerably amongst patients.
• Pfiesteria shumwayae poisoning: Pfiesteria shumwayae is an estuarine microorganism (dinoflagellate) that can cause illness in humans as well as fish. The particular toxin involved has not yet been identified. The microorganism may release toxins into the water or it may be aerosolized which can result in skin, eye and respiratory exposure. The condition is not contagious and they symptoms may vary considerably amongst patients.
• Pharyngoconjunctival fever: An infectious disease usually caused by adenovirus type 3. The infection may be acute, epidemic or sporadic and is more common in children. Infection can be transmitted through swimming pools. The incubation period is 5-9 days.
• Phosgene oxime - eye exposure: Phosgen oxime has no useful purpose but may be manufactured for use as a chemical weapon. Eye exposure to the chemicals can cause potentially serious complications such as blindness. The severity of symptoms will vary depending on the extent and duration of the exposure.
• Phosgene oxime exposure: Phosgene oxime has no useful purpose but may be manufactured for use as a chemical weapon. The chemical is poisonous and exposure can occur through ingestion, inhalation and absorption through the skin. Symptoms will vary depending on the method of exposure, degree of exposure and duration of exposure. The chemical can penetrate clothing.
• Pigeon allergy: A pigeon allergy is an adverse reaction by the body's immune system to pigeons. The allergy is usually associated with the skin, feathers or excrement of the pigeon. The body's immune system produces immunoglobulin E (IgE - an antibody) and histamine in response to contact with the allergen. The specific symptoms that can result can vary considerably amongst patients e.g. skin and respiratory symptoms.
• Pineapple sap poisoning: The pineapple plant is cultivated for it's juicy, sweet, tropical fruit. The sap from the leaves can cause skin irritation and some people also suffer symptoms if their skin is exposed to pineapple juice.
• Plant poisoning - Euphorbiaceae: Euphorbiaceae is a family of flowering plants called spurges. They contain various chemicals (alkaloids, glycosides and diterpene ester) which can cause symptoms if ingested.
• Pollen allergy: An allergic reaction that occurs due to exposure to pollen
• Polychondritis: A serious, progressive, episodic condition characterized by inflammation and degeneration of cartilage in the body. The duration and severity of the episodes can vary.
• Polycythemia: increase in the total number of red blood cells in the circulation. It can be primary or secondary
• Popcorn tree poisoning: Popcorn tree is a deciduous tree which bears elongated clusters of yellowish fruit and seed capsules containing large whitish seeds. The plant can be found growing in the wild or in gardens. The sap from the plant and the unripe fruit contain chemicals which can cause gastrointestinal symptom if eaten or skin irritation upon skin exposure. The plant is considered to have a relatively low level of toxicity.
• Prescribed medication addiction: An uncontrollable desire to use prescribed medication in a manner or frequency not prescribed. Drugs such as painkillers are prescribed to treat such things as pain but patients may become physically dependent on the drug and continue to obsessively use it even after the condition it was prescribed for has resolved. Frequent use leads to an increased tolerance to the drug so higher and higher doses are required to achieve the desired euphoric feeling.
• Processionary tree caterpillar poisoning: A dark, grey-black caterpillar which can cause varying symptoms on contact with its hairs or spines.
• Puffy eyes: Swelling or puffiness around the eyes
• Queensland tick typhus: Form of typhus from North-Australian ticks
• Randa's Eyed Silk moth caterpillar poisoning: Contact with the poisonous hairs or spines of the Randa's Eyed Silk moth caterpillar can cause skin rashes or even a hypersensitivity reaction in some cases.
• Red eye: Redness of the eyes
• Red eyelids: Redness of one or both eyelids
• Reiter’s syndrome: A form of reactive arthritis characterized by arthritis, urethritis, conjunctivitis and skin lesions.
• Rhinosporidiosis: An infectious disease caused by Rhinosporidium seeberi which occurs mainly in the nasal cavity or nearby mucosa-lined structures such as the conjunctiva. On rare occasions other parts of the body may be infected e.g. genital, rectum, ear and skin. The infection tends to persist for long periods of time (sometimes decades) and occasionally secondary bacterial infection can occur. Infection usually occurs through exposure to stagnant water contaminated with the infectious agent.
• Ritter syndrome: A rare infantile skin disorder involving severe redness, inflammation, blistering and peeling of skin and mucous membranes which can result from a variety of infections, malignancies and drugs.
• Rocky Mountain spotted fever: A bacterial disease caused by Rickettsia rickettsii and transmitted by ticks. The condition causes fever and a characteristic rash and may be fatal in severe or untreated cases.
• Rodent allergy: A rodent allergy is an adverse reaction by the body's immune system to rodents such as mice and rats. The allergy is usually associated with the skin, saliva or urine of rodents. The body's immune system produces immunoglobulin E (IgE - an antibody) and histamine in response to contact with the allergen. The specific symptoms that can result can vary considerably amongst patients e.g. skin and respiratory symptoms.
• Rosacea: Inflammatory rash affecting cheeks, nose, forehead, chin
• SUNCT headache: A syndrome involving a short-lived pain around one eye or on one side of the head as well as well as fluid being forced into the conjunctiva and mucous membranes of the eyelids.
• Sandfly fever: Viral infection from sandfly bites
• Sarcoidosis: Rare autoimmune disease usually affecting the lungs.
• Satin moth caterpillar poisoning: Contact with the poisonous hairs or spines of the Satin moth caterpillar can cause skin rashes or even a hypersensitivity reaction in some cases.
• Scleritis: This is where there is inflammation of the sclera
• Seafood allergy: A seafood allergy is an adverse reaction by the body's immune system to seafood or food containing seafood. The specific symptoms that can result can vary considerably amongst patients from a severe anaphylactic reaction to asthma, abdominal symptoms, eczema or headaches.
• Secondary glaucoma: Glaucoma that occurs as a complication of various medical conditions such as eye surgery, advanced cataracts, eye injuries, some eye tumors, uveitis, diabetes or use of corticosteroid drugs.
• Severe combined immunodeficiency, T- B+ due to JAK3 deficiency: A recessively inherited immunodeficiency disorder characterized by a lack of circulating T and Natural Killer Cells and a normal level of B cells. The disorder is caused by a defect on the JAK3 gene. Infants may display symptoms such as pancytopenia, skin rash and abnormal liver function due to a graft-versus-host reaction to the mother's T cells via the placenta. If the condition is not treated, death occurs.
• Silver Spotted Tiger moth caterpillar poisoning: Contact with the poisonous hairs or spines of the Silver Spotted Tiger moth caterpillar can cause skin rashes or even a hypersensitivity reaction in some cases.
• Sjogren's Syndrome: Autoimmune disease damaging the eye tear ducts and other glands.
• Sjogren's syndrome, juvenile, secondary to autoimmune disease: An autoimmune disorder that affects the glands involved in tear and saliva production as well as gastrointestinal tract moisture. It can occur as a secondary condition associated with other autoimmune disorders such as systemic lupus and rheumatoid arthritis.
• Sleeping pill addiction: An uncontrollable desire to use sleeping pills on a regular basis. Sleeping pills are often prescribed for the treatment of sleeping problems but chronic use can lead to dependence on the drug. Frequent use leads to an increased tolerance to the drug so higher and higher doses are required to achieve the desired euphoric feeling.
• Sparrow allergy: A sparrow allergy is an adverse reaction by the body's immune system to sparrows. The allergy is usually associated with the skin, feathers or excrement of the bird. The body's immune system produces immunoglobulin E (IgE - an antibody) and histamine in response to contact with the allergen. The specific symptoms that can result can vary considerably amongst patients e.g. skin and respiratory symptoms.
• Spiny elm caterpillar poisoning: Contact with the poisonous hairs or spines of the Spiny Elm caterpillar can cause skin rashes or even a hypersensitivity reaction in some cases.
• Spring catarrh: An allergic eye condition where an abnormal immune system reaction to an allergen results in inflammation of the conjunctiva of the eye (thin clear lining covering the eye and lining the inside of the eyelids). Symptoms tend to be more common in spring and summer due to the increased presence of potential airborne allergens.
• Staphylococcal infection: Any infection caused by the bacteria staphylococcal
• Staphylococcal toxic shock syndrome: A very rare, potentially fatal infection caused by the bacterial toxins produced by Staphylococcus aureus or Streptococcus pyogenes. The condition is often associated with tampon use but can originate from other sources.
• Stevens Johnson syndrome: A rare but serious condition involving inflammation and blistering of the skin and mucous membranes. It is believed to be an allergic reaction that can occur in response to some drugs or infectious diseases.
• Stinging Bark caterpillar poisoning: Contact with the poisonous hairs or spines of the Stinging Bark caterpillar can cause skin rashes or even a hypersensitivity reaction in some cases.
• Stinging Nettle caterpillar poisoning: Contact with the poisonous hairs or spines of the Stinging Nettle caterpillar can cause skin rashes or even a hypersensitivity reaction in some cases.
• Stinging Rose caterpillar poisoning: Contact with the poisonous hairs or spines of the Stinging Rose caterpillar can cause skin rashes or even a hypersensitivity reaction in some cases.
• Striped Blister Beetle poisoning: The striped blister beetle is native to many parts of America and Canada. Animals that accidentally eat the beetles can become quite ill and they can also cause symptoms in humans if accidentally ingested. The beetles contain toxic substances called cantharidin and pederin which can cause symptoms through skin or eye exposure as well as through ingestion.
• Subconjunctival hemorrhage: Red blood-like color of the eyes
• Superior vena cava syndrome: A condition caused by compression or obstruction to the normal circulation of the superior vena cava which carries deoxygenated blood from the body tissues back to the heart.
• The clap: A sexually transmitted infection by the bacteria Neisseria gonorrhoeae.
• Tolosa-Hunt Syndrome: A rare disorder characterized by severe headaches and paralysis and weakness of eye muscles.
• Toxemia: A medical condition that occurs when there is a release of toxins from bacteria within the bloodstream
• Toxic Shock Syndrome: Severe immune reaction causing shock
• Trachoma: Chronic bacterial eye condition in the developing world
• Tranquilizer addiction: An uncontrollable desire to use tranquilizers on a regular basis. Tranquilizers are often prescribed for the treatment of anxiety and sleeping problems but chronic use can lead to dependence on the drug. Frequent use leads to an increased tolerance to the drug so higher and higher doses are required to achieve the desired euphoric feeling.
• Trigeminal neuralgia: Trigeminal neuralgia is a very painful inflammation of the nerve (trigeminal nerve) that delivers sensations to the face and "surface" of the eye.
• Turkey allergy: A turkey allergy is an adverse reaction by the body's immune system to turkeys. The allergy is usually associated with the skin, feathers or excrement from the turkey. The body's immune system produces immunoglobulin E (IgE - an antibody) and histamine in response to contact with the allergen. The specific symptoms that can result can vary considerably amongst patients e.g. skin and respiratory symptoms.
• Tussock moth caterpillar poisoning: A hairy, bright-colored caterpillar which can cause skin symptoms on contact with the hair. Inhalation of the hairs can cause respiratory symptoms and eye exposure can also result in symptoms. Patients with pre-existing asthma or atopic allergies may suffer more severe symptoms.
• Type A Influenza: Type A influenza is a subtype of the influenza virus that can cause cause serious illness and result in pandemics. Influenza is viral respiratory infection. The virus is very contagious and can cause severe illness especially in patients who are very young or old or have some other medical condition as well. The severity of symptoms can vary but usually involves respiratory and constitutional (e.g. headache, aching muscles) symptoms. The influenza virus can mutate and produce different strains though the symptoms are the same. This frequent mutation means that people need regular vaccinations to ensure they are protected against new strains as they arise.
• Type A influenza subtype H1: The H1 subtype of influenza is a strain of the type A influenza virus that can cause cause serious illness and result in pandemics. Influenza is viral respiratory infection. The virus is very contagious and can cause severe illness especially in patients who are very young or old or have some other medical condition as well. The severity of symptoms can vary but usually involves respiratory and constitutional (e.g. headache, aching muscles) symptoms. The influenza virus can mutate and produce different strains though the symptoms are the same. This frequent mutation means that people need regular vaccinations to ensure they are protected against new strains as they arise.
• Type A influenza subtype H10N7: Influenza is viral respiratory infection. The virus is very contagious and can cause severe illness especially in patients who are very young or old or have some other medical condition as well. The severity of symptoms can vary but usually involves respiratory and constitutional (e.g. headache, aching muscles) symptoms. The influenza virus can mutate and produce different strains though the symptoms are the same. This frequent mutation means that people need regular vaccinations to ensure they are protected against new strains as they arise. Influenza A H10N7 is a subtype of influenza which rarely causes infection in human - only two cases of infectin have been reported.
• Type A influenza subtype H1N1: The H1N1 subtype of influenza is a strain of the type A influenza virus that can cause illness in humans. Influenza is viral respiratory infection. The virus is contagious and can cause severe illness especially in patients who are very young or old or have some other medical condition as well. The severity of symptoms can vary but usually involves respiratory and constitutional (e.g. headache, aching muscles) symptoms. The H1N1 subtype caused a pandemic called the Spanish Flu in 1918 and resulted in millions of deaths.
• Type A influenza subtype H1N2: The H1N2 subtype of influenza is a strain of the type A influenza virus that can cause cause illness in humans. Influenza is viral respiratory infection. The virus is contagious and can cause severe illness especially in patients who are very young or old or have some other medical condition as well. The severity of symptoms can vary but usually involves respiratory and constitutional (e.g. headache, aching muscles) symptoms. The influenza virus can mutate and produce different strains though the symptoms are the same. This frequent mutation means that people need regular vaccinations to ensure they are protected against new strains as they arise.
• Type A influenza subtype H2N2: The H2N2 subtype of influenza is a strain of the type A influenza virus that can cause cause illness in humans. Influenza is viral respiratory infection. The virus is very contagious and can cause severe illness especially in patients who are very young or old or have some other medical condition as well. The severity of symptoms can vary but usually involves respiratory and constitutional (e.g. headache, aching muscles) symptoms. The influenza virus can mutate and produce different strains though the symptoms are the same. This frequent mutation means that people need regular vaccinations to ensure they are protected against new strains as they arise.
• Type A influenza subtype H3N2: The H3N2 subtype of influenza is a strain of the type A influenza virus that can cause cause illness in humans. Subtype H3N2 has caused a number of pandemics (e.g. Hong Kong Flu) and tends to occur in a seasonal pattern in many parts of the world. Influenza is viral respiratory infection. The virus is very contagious and can cause severe illness especially in patients who are very young or old or have some other medical condition as well. The severity of symptoms can vary but usually involves respiratory and constitutional (e.g. headache, aching muscles) symptoms. The influenza virus can mutate and produce different strains though the symptoms are the same. This frequent mutation means that people need regular vaccinations to ensure they are protected against new strains as they arise.
• Type A influenza subtype H5: Influenza is viral respiratory infection. The virus is very contagious and can cause severe illness especially in patients who are very young or old or have some other medical condition as well. The severity of symptoms can vary but usually involves respiratory and constitutional (e.g. headache, aching muscles) symptoms. The influenza virus can mutate and produce different strains though the symptoms are the same. This frequent mutation means that people need regular vaccinations to ensure they are protected against new strains as they arise. Influenza A H5 is a subtype of influenza which can be further divided into subtypes e.g. H5N1.
• Type A influenza subtype H5N1: Influenza is viral respiratory infection. The virus is very contagious and can cause severe illness especially in patients who are very young or old or have some other medical condition as well. The severity of symptoms can vary but usually involves respiratory and constitutional (e.g. headache, aching muscles) symptoms. The influenza virus can mutate and produce different strains though the symptoms are the same. This frequent mutation means that people need regular vaccinations to ensure they are protected against new strains as they arise. Influenza A H5N1 is a subtype of influenza that mainly infects birds but can be transmitted to humans. Infections were reported in Hong Kong in 1997 and in various parts of the world in 2003 - 2007.
• Type A influenza subtype H7: Influenza is viral respiratory infection. The virus is very contagious and can cause severe illness especially in patients who are very young or old or have some other medical condition as well. The severity of symptoms can vary but usually involves respiratory and constitutional (e.g. headache, aching muscles) symptoms. The influenza virus can mutate and produce different strains though the symptoms are the same. This frequent mutation means that people need regular vaccinations to ensure they are protected against new strains as they arise. Influenza A H7 is a subtype of influenza which usually infects animals but can be transmitted to humans.
• Type A influenza subtype H7N2: Influenza is viral respiratory infection. The virus is very contagious and can cause severe illness especially in patients who are very young or old or have some other medical condition as well. The severity of symptoms can vary but usually involves respiratory and constitutional (e.g. headache, aching muscles) symptoms. The influenza virus can mutate and produce different strains though the symptoms are the same. This frequent mutation means that people need regular vaccinations to ensure they are protected against new strains as they arise. Influenza A H7N2 is a subtype of influenza which has rarely infected humans. Infections were reported in New York in 2003 and in the UK in 2007.
• Type A influenza subtype H7N3: Influenza is viral respiratory infection. The virus is very contagious and can cause severe illness especially in patients who are very young or old or have some other medical condition as well. The severity of symptoms can vary but usually involves respiratory and constitutional (e.g. headache, aching muscles) symptoms. The influenza virus can mutate and produce different strains though the symptoms are the same. This frequent mutation means that people need regular vaccinations to ensure they are protected against new strains as they arise. Influenza A H7N3 is a subtype of influenza which rarely infects humans. Infections were reported were reported in Canada in 2004.
• Type A influenza subtype H7N7: Influenza is viral respiratory infection. The virus is very contagious and can cause severe illness especially in patients who are very young or old or have some other medical condition as well. The severity of symptoms can vary but usually involves respiratory and constitutional (e.g. headache, aching muscles) symptoms. The influenza virus can mutate and produce different strains though the symptoms are the same. This frequent mutation means that people need regular vaccinations to ensure they are protected against new strains as they arise. Influenza A H7N7 is a subtype of influenza which rarely infects humans. Infections were reported in the UK in 1996 and in the Netherlands in 2003.
• Type A influenza subtype H9: Influenza is viral respiratory infection. The virus is very contagious and can cause severe illness especially in patients who are very young or old or have some other medical condition as well. The severity of symptoms can vary but usually involves respiratory and constitutional (e.g. headache, aching muscles) symptoms. The influenza virus can mutate and produce different strains though the symptoms are the same. This frequent mutation means that people need regular vaccinations to ensure they are protected against new strains as they arise. Influenza A H9 is a subtype of influenza which rarely causes infection in humans and tends to only cause mild illness.
• Type A influenza subtype H9N2: Influenza is viral respiratory infection. The virus is very contagious and can cause severe illness especially in patients who are very young or old or have some other medical condition as well. The severity of symptoms can vary but usually involves respiratory and constitutional (e.g. headache, aching muscles) symptoms. The influenza virus can mutate and produce different strains though the symptoms are the same. This frequent mutation means that people need regular vaccinations to ensure they are protected against new strains as they arise. Influenza A H9N2 is a subtype of influenza which rarely causes infection in humans. A small number of cases occurred in China and Hong Kong in 1999 and 2003 and 2007.
• Type B Influenza: Type B influenza is a subtype of the influenza virus that tends to occur sporadically - can cause epidemics but not pandemics. Influenza is viral respiratory infection. The virus is very contagious and can cause severe illness especially in patients who are very young or old or have some other medical condition as well. The severity of symptoms can vary but usually involves respiratory and constitutional (e.g. headache, aching muscles) symptoms. The influenza virus can mutate and produce different strains though the symptoms are the same. This frequent mutation means that people need regular vaccinations to ensure they are protected against new strains as they arise.
• Type C Influenza: Type C influenza is a subtype of the influenza virus that only rarely infects people and tends to only cause mild illness. It is not known to cause epidemics or pandemics. Influenza is viral respiratory infection.
• Uveitis: A condition which is the result of inflammation of the uvea
• Vaccinia keratitis: Vaccinia keratitis is an eye condition that occurs when the cornea is exposed to the smallpox virus. This exposure is most likely to occur when a person rubs their eyes after handling or bathing a recently vaccinated child. Symptoms may be severe and permanent damage to vision may result.
• Vanadium toxicity: Exposure to high levels of the trace element vanadium can occur in certain industrial plants where it can be inhaled. It has not yet been determined if vanadium is an essential element in human diets.
• Vernal keratoconjunctivitis: A rare allergic type of conjunctivitis (inflammation of the lining of the eyelid and most of the eye) which occurs seasonally in warm weather
• Viral diseases: Any disease that is caused by a virus
• Vitamin C deficiency: Indequate vitamin C in the diet
• Vogt-Koyanagi-Harada Syndrome: A rare condition characterized by poliosis and hair, skin, eye and ear abnormalities as well as retinal detachment and neurological involvement.
• Wegener's granulomatosis: A rare disease involving blood vessel inflammation which can affect the blood flow to various tissues and organs and hence cause damage. The respiratory system and the kidneys are the main systems affected.
• Weil's syndrome: Severe form of Leptospirosis
• White marked tussock moth caterpillar poisoning: Contact with the poisonous hairs or spines of the White marked tussock moth caterpillar can cause skin rashes or even a hypersensitivity reaction in some cases.
• X-linked agammaglobulinaemia: A condition that is characterised by the x linked inheritance of the absence of all immunoglobulins in the blood
• Xeroderma pigmentosum, type 1: A rare genetic disorder where the enzyme that repairs DNA damage done by UV radiation is defective. It is characterized by sensitivity to sunlight, skin pigmentation and atrophy and actinic skin tumors. The different types of xeroderma pigmentosum vary in the body's ability to repair the damage to DNA done by UV radiation - type 1 has the lowest level of repair and the most neurological complications.
• Xeroderma pigmentosum, type 2: A rare genetic disorder where the enzyme that repairs DNA damage done by UV radiation is defective. It is characterized by sensitivity to sunlight, skin pigmentation and atrophy and actinic skin tumors. The different types of xeroderma pigmentosum vary in the body's ability to repair the damage to DNA done by UV radiation. Type B is often associated with signs of Cockayne syndrome.
• Xeroderma pigmentosum, type 3: A rare genetic disorder where the enzyme that repairs DNA damage done by UV radiation is defective. It is characterized by sensitivity to sunlight, skin pigmentation and atrophy and actinic skin tumors. The different types of xeroderma pigmentosum vary in the body's ability to repair the damage to DNA done by UV radiation. Neurological symptoms are rarely experienced in type 3.
• Xeroderma pigmentosum, type 4: A rare genetic disorder where the enzyme that repairs DNA damage done by UV radiation is defective. It is characterized by sensitivity to sunlight, skin pigmentation and atrophy and actinic skin tumors. The different types of xeroderma pigmentosum vary in the body's ability to repair the damage to DNA done by UV radiation. Type D involves neurological symptoms.
• Xeroderma pigmentosum, type 5: A rare genetic disorder where the enzyme that repairs DNA damage done by UV radiation is defective. It is characterized by sensitivity to sunlight, skin pigmentation and atrophy and actinic skin tumors. The different types of xeroderma pigmentosum vary in the body's ability to repair the damage to DNA done by UV radiation. Type E is a very rare form of the condition and involves mild skin symptoms with no neurological symptoms.
• Xeroderma pigmentosum, type 6: A rare genetic disorder where the enzyme that repairs DNA damage done by UV radiation is defective. It is characterized by sensitivity to sunlight, skin pigmentation and atrophy and actinic skin tumors. The different types of xeroderma pigmentosum vary in the body's ability to repair the damage to DNA done by UV radiation. The skin and neurological symptoms in Type 6 tend to be mild.
• Xeroderma pigmentosum, type 7: A rare genetic disorder where the enzyme that repairs DNA damage done by UV radiation is defective. It is characterized by sensitivity to sunlight, skin pigmentation and atrophy and actinic skin tumors. The different types of xeroderma pigmentosum vary in the body's ability to repair the damage to DNA done by UV radiation. Type G usually involves severe neurological symptoms.
• Yellow fever: A viral infection transmitted by mosquito bites which can damage various organs such as the liver, heart, kidney and digestive tract.

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