Blogs

LaCrosse encephalitis virus (LACV) was first described from a fatal human case in LaCrosse, WI in 1964. The natural virus cycle involves woodland mosquitoes, primarily Aedes triseriatus (Say) (Eastern treehole mosquito), and small mammals such as chipmunks and squirrels. Transmission...

Saint Louis encephalitis virus (SLEV) was first described following an outbreak in St. Louis Missouri in 1933. Since then, more than 50 outbreaks and numerous epidemics have occurred in the United States and southern Canada. History and outbreaks A major...

Eastern equine encephalitis virus (EEEV) was first identified in 1938, when 30 children died of encephalitis in the northeastern United States during an outbreak in horses in the same region. Transmission cycle The EEE virus is capable of infecting mammals,...