Prevalence and Incidence of Japanese encephalitis
Japanese encephalitis: Rare Disease
Japanese encephalitis is listed as a "rare disease" by the Office of
Rare Diseases (ORD) of the National Institutes of Health
(NIH). This means that Japanese encephalitis, or a subtype of Japanese encephalitis,
affects less than 200,000 people in the US population.
Japanese encephalitis Prevalence: Book Excerpts
Incidence (annual) of Japanese encephalitis:
1 case annually in USA (DVBID) ... see also overview of Japanese encephalitis.
Incidence Rate:
approx 1 in 272,000,000 or 0.00% or 1 people in USA [Source statistic for calcuation: "1 case annually in USA (DVBID)" -- see also general information about data sources]
Incidence extrapolations for USA for Japanese encephalitis:
1 per year,
0 per month,
0 per week,
0 per day,
0 per hour,
0 per minute,
0 per second.
[Source statistic for calculation: "1 case annually in USA (DVBID)" -- see also general information about data sources]
Prevalance of Japanese encephalitis:
Fewer than 1 case/year
is reported in U.S. civilians and military personnel traveling to and
living in Asia. Rare outbreaks in U.S. territories in Western Pacific
have occurred. (Source: excerpt from Questions and Answers About Japanese Encephalitis: DVBID)
Worldwide prevalence of Japanese encephalitis:
Japanese encephalitis is the leading cause of viral encephalitis
in Asia with 30-50,000 cases reported annually. (Source: excerpt from Questions and Answers About Japanese Encephalitis: DVBID)
Incidence statistics for Japanese encephalitis:
The following statistics relate to the incidence of Japanese encephalitis:
- 0 new cases of Japanese encephalitis per 100,000 population was notified in Australia 2002 (Yohannes K, Roche P, Blumer C et al. 2004, Australia’s Health 2004, AIHW)
- 0 new cases of Japanese Encephalitis was notified in Australia 2002 (Yohannes K, Roche P, Blumer C et al. 2004, Australia’s Health 2004, AIHW)
- more statistics...»
Death statistics for Japanese encephalitis:
The following statistics relate to deaths and Japanese encephalitis:
- Japanese Encephalitis death statistics by worldwide region:
- About 8,000 deaths from Japanese Encephalitis in South East Asia 2002 (The World Health Report, WHO, 2004)
- About 2,000 deaths from Japanese Encephalitis in Eastern Mediterranean 2002 (The World Health Report, WHO, 2004)
- About 3,000 deaths from Japanese Encephalitis in Western Pacific 2002 (The World Health Report, WHO, 2004)
- more statistics...»
More Statistics about Japanese encephalitis:
Deaths and related statistics
All statistics for Japanese encephalitis
Prevalence/Incidence of Japanese encephalitis: Online Medical Books
16 MEDICAL BOOKS ONLINE!
Review excerpts from medical books online, free, without registration,
for more information about the prevalence and/or incidence of Japanese encephalitis.
Headache:
Causes and incidence
(Professional Guide to Diseases (Eighth Edition))
Most chronic headaches result from tension (muscle contraction), which may be caused by emotional stress, fatigue, menstruation, or environmental stimuli (noise, crowds, or bright lights). Other possible causes include glaucoma; inflammation of the eyes or mucosa of the nasal or paranasal sinuses; diseases of the scalp, teeth, extracranial arteries, or external or middle ear; muscle spasms of the face, neck, or shoulders; and cervical arthritis. In addition, headaches may be caused by vasodilators (nitrates, alcohol, and histamine), systemic disease, hypoxia, hypertension, head trauma and tumor, intracranial bleeding, abscess, or aneurysm.
The cause of migraine headache is unknown, but it’s associated with constriction and dilation of intracranial and extracranial arteries. Certain biochemical abnormalities are thought to occur during a migraine attack. These include local leakage of a vasodilator polypeptide called neurokinin through the dilated arteries and a decrease in the plasma level of serotonin.
Headache pain may emanate from the pain-sensitive structures of the skin, scalp, muscles, arteries, and veins; cranial nerves V, VII, IX, and X; or cervical nerves 1, 2, and 3. Intracranial mechanisms of headaches include traction or displacement of arteries, venous sinuses, or venous tributaries and inflammation or direct pressure on the cranial nerves with afferent pain fibers.
Affecting up to 10% of Americans, headaches are more common in females and have a strong familial incidence.
» READ BOOK EXCERPT ONLINE »
Source: Professional Guide to Diseases (Eighth Edition), 2005
West Nile encephalitis:
Causes and incidence
(Professional Guide to Diseases (Eighth Edition))
WNV is transmitted to humans by the bite of a mosquito (primarily the Culex species) infected with the virus. It's considered the primary vector for WNV and the source of the August 1999 outbreak in New York, New Jersey and Connecticut. Mosquitoes become infected by feeding on birds contaminated with the West Nile virus and then transmitting it to humans and animals during a blood meal or “bite.” (See Transmission routes of West Nile virus, page 256.)
Ticks have been found infected with WNV in Africa and Asia only. The role of ticks in the transmission and maintenance of the virus remains uncertain, and to date they aren't considered vectors for WNV in the United States.
The Centers for Disease Control and Prevention has reported that there is no evidence that a person can contract the virus from handling live or dead infected birds. However, avoid barehanded contact when handling dead animals, including birds, and use gloves or double plastic bags to dispose of a carcass. Report the finding to the local health department.
» READ BOOK EXCERPT ONLINE »
Source: Professional Guide to Diseases (Eighth Edition), 2005
About prevalence and incidence statistics:
The term 'prevalence' of Japanese encephalitis usually refers to the estimated population
of people who are managing Japanese encephalitis at any given time.
The term 'incidence' of Japanese encephalitis refers to the annual diagnosis rate,
or the number of new cases of Japanese encephalitis diagnosed each year.
Hence, these two statistics types can differ:
a short-lived disease like flu can have high annual incidence but low prevalence,
but a life-long disease like diabetes has a low annual incidence but high prevalence.
For more information see about prevalence and incidence statistics.
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