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Culiseta melanura mosquito preparing to feed on a blue jay

Eastern equine encephalitis virus is maintained in a cycle between C. melanura mosquitoes and avian hosts in freshwater hardwood swamps. C. melanura is not an important vector of Eastern equine encephalitis virus to people because it feeds almost exclusively on birds. Transmission to people requires another mosquito species to create a “bridge” between infected birds and uninfected mammals (eg, people and horses). Most of the bridge species are within the Aedes, Coquillettidia, and Culex genera. Photograph credit: CDC/The Connecticut Agricultural Experiment Station in 2019. (Source: Public Health Image Library, U.S. Centers for Disease Control and Prevention, Atlanta, Georgia. Image 24558. Public domain.)

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