Vaccines and Preventable Diseases:
Japanese Encephalitis Photos
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Photos of the Disease (Virus)
The virus causing Japanese encephalitis is transmitted by mosquitoes belonging to the Culex tritaeniorhynchus and Culex vishnui groups, which breed particularly in flooded rice fields. The virus circulates in ardeid birds (herons and egrets). Pigs are amplifying hosts, in that the virus reproduces in pigs and infects mosquitoes that take blood meals, but does not cause disease. The virus tends to spill over into human populations when infected mosquito populations build up explosively and the human biting rate increases (these culicines are normally zoophilic, i.e. they prefer to take blood meals from animals). Courtesy of WHO (exit)
From the Division of Vector-borne Infectious Diseases
www.cdc.gov/ncidod/dvbid/westnile/culex-image.htm
Culex mosquito laying eggs.
Images of People Affected by the Disease
None available.
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Content last reviewed on March 19, 2007
Content Source: National Center for Immunization and Respiratory Diseases