title: From the Centers for Disease Control and Prevention. Update: West Nile virus activity--Northeastern United States, 2000.
mesh_terms: D000328:Adult; D000368:Aged; D000818:Animals; D001715:Bird Diseases / Q000453:epidemiology*; D001717:Birds / Q000821:virology; D002685:Chiroptera / Q000821:virology; D009033:Culicidae / Q000821:virology*; D006734:Horse Diseases / Q000453:epidemiology; D006736:Horses / Q000821:virology; D006801:Humans; D008875:Middle Aged; D009511:New England / Q000453:epidemiology; D011159:Population Surveillance; D014901:West Nile Fever / Q000453:epidemiology* / Q000662:veterinary*; D014902:West Nile virus / Q000302:isolation & purification*