Eastern, Western, and Venezuelan equine encephalitis (EEE, WEE, and VEE) are arboviruses–meaning they are transmitted by blood-feeding insects or ticks–and these pathogens can cause fatal neurologic disease in horses. EEE, WEE, and VEE are all alphaviruses that are a part of the Togavirus family (Togaviridae), and collectively they are termed the equine viral encephalomyelitides. West Nile virus is also an arbovirus, but it is a member of the Flaviridae family, which is named after yellow fever virus. Continue reading…
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