The following statistics relate to deaths and Contagious Diseases:
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Apparently, the reservoir of EBV is limited to humans. Infectious mononucleosis probably spreads by the oral-pharyngeal route because about 80% of patients carry EBV in the throat during the acute infection and for an indefinite period afterward. It can also be transmitted by blood transfusions and has been reported after cardiac surgery as the post-pump perfusion syndrome. Infectious mononucleosis is probably contagious from before symptoms develop until the fever subsides and oral-pharyngeal lesions disappear.
Infectious mononucleosis is fairly common in the United States, Canada, and Europe and affects both sexes equally. Incidence varies seasonally among college students but not among the general population.
Source: Professional Guide to Diseases (Eighth Edition), 2005
Acute infectious myringitis usually follows viral infection but may also result from infection with bacteria (pneumococcus, Haemophilus influenzae, beta-hemolytic streptococci, staphylococci) or any other organism that can cause acute otitis media. Myringitis is a rare sequela of atypical pneumonia caused by Mycoplasma pneumoniae. The cause of chronic granular myringitis is unknown.
Acute infectious myringitis frequently occurs epidemically in children.
Source: Professional Guide to Diseases (Eighth Edition), 2005
The term 'prevalence' of Contagious Diseases usually refers to the estimated population of people who are managing Contagious Diseases at any given time. The term 'incidence' of Contagious Diseases refers to the annual diagnosis rate, or the number of new cases of Contagious Diseases 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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