Prevalence and Incidence of Encephalitis
Encephalitis Prevalence: Book Excerpts
Incidence of types of Encephalitis:
For details see incidence of types of Encephalitis analysis; summary of available incidence by type data:
More Statistics about Encephalitis:
Hospitalization statistics
All statistics for Encephalitis
Prevalence/Incidence of 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 Encephalitis.
Meningococcal infections:
Causes and incidence
(Professional Guide to Diseases (Eighth Edition))
Meningococcal infections usually occur among children (ages 6 months to 1 year) and men, usually military recruits or those enrolled at institutions, such as colleges, because of overcrowding.
N. meningitidis has seven serogroups (A, B, C, D, X, Y, and Z); group A causes most epidemics. Transmission takes place through inhalation of an infected droplet from a carrier (an estimated 2% to 38% of the population). The bacteria localize in the nasopharynx. After incubating approximately 3 to 4 days, they spread through the bloodstream to joints, skin, adrenal glands, lungs, and the central nervous system. The tissue damage that results (possibly due to the effects of bacterial endotoxins) produces symptoms and, in fulminating meningococcemia and meningococcal bacteremia, hemorrhage, thrombosis, and necrosis.
» 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 Encephalitis usually refers to the estimated population
of people who are managing Encephalitis at any given time.
The term 'incidence' of Encephalitis refers to the annual diagnosis rate,
or the number of new cases of 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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