Protection from West Nile virus.
D000818:Animals; D009033:Culicidae / Q000821:virology; D004196:Disease Outbreaks; D006801:Humans; D009032:Mosquito Control; D012307:Risk Factors; D014481:United States / Q000453:epidemiology; D014901:West Nile Fever / Q000453:epidemiology / Q000517:prevention & control* / Q000635:transmission; D014902:West Nile virus