Western equine encephalitis

Western equine encephalitis (WEE) is a virus-associated disease caused by equine encephalitis. In 1930, Meger isolated the virus from herds of encephalitis. In 1937, the virus was isolated from the brain tissue of a child who died of encephalitis. Because it was first found in the western United States, it is called western equine encephalitis. The main clinical manifestations are similar to Eastern equine encephalitis, but it is lighter than Eastern equine encephalitis and has a lower mortality rate.