Venezuelan encephalitis.
D000818:Animals; D004666:Encephalitis Virus, Venezuelan Equine; D004683:Encephalomyelitis, Equine / Q000453:epidemiology / Q000517:prevention & control / Q000662:veterinary; D006734:Horse Diseases / Q000453:epidemiology / Q000517:prevention & control; D006736:Horses; D006801:Humans; D014611:Vaccination