Epidemiological studies on equine encephalomyelitis in Maryland and Virginia.
D000818:Animals; D004679:Encephalomyelitis; D004683:Encephalomyelitis, Equine / Q000453:epidemiology*; D016021:Epidemiologic Studies; D006736:Horses; D008396:Maryland; D014768:Virginia
ENCEPHALOMYELITIS, EQUINE/epidemiology