title: Origin of epidemics of Venezuelan equine encephalitis.
mesh_terms: D000818:Animals; D000956:Antigens, Viral; D009033:Culicidae; D004197:Disease Reservoirs; D004199:Disease Vectors; D004666:Encephalitis Virus, Venezuelan Equine / Q000276:immunology; D004668:Encephalitis Viruses / Q000276:immunology*; D004683:Encephalomyelitis, Equine / Q000453:epidemiology* / Q000276:immunology / Q000382:microbiology; D006385:Hemagglutination Inhibition Tests; D006736:Horses; D006801:Humans; D012377:Rodentia; D014481:United States; D014687:Venezuela
chemical_list: D000956:Antigens, Viral