title: Epizootiology of eastern equine encephalomyelitis virus in upstate New York, USA. I. Introduction, demography and natural environment of an endemic focus.
mesh_terms: D000818:Animals; D004196:Disease Outbreaks / Q000662:veterinary; D004683:Encephalomyelitis, Equine / Q000453:epidemiology / Q000662:veterinary*; D004777:Environment; D005843:Geography; D006734:Horse Diseases / Q000453:epidemiology*; D006736:Horses; D006801:Humans; D012988:Soil Microbiology