Eastern equine encephalitis (EEE) is a rare but serious disease caused by a virus that spreads through the bite of an infected mosquito. Only a few human cases are reported in the United States each year. The disease also commonly affects horses, but it has been reported in other animals like alpacas, donkeys, pheasants, and emus.
There are no human vaccines to prevent or medicines to treat EEE. The best way to reduce your risk of infection with EEE virus is by preventing mosquito bites: use insect repellent, wear long-sleeved shirts and long pants, and control mosquitos indoors and outdoors.