West Nile virus.
D000818:Animals; D001717:Birds / Q000821:virology; D003140:Communicable Disease Control; D009033:Culicidae / Q000821:virology; D006801:Humans; D009825:Oklahoma / Q000453:epidemiology; D011635:Public Health Administration; D012307:Risk Factors; D014901:West Nile Fever / Q000175:diagnosis / Q000453:epidemiology / Q000473:pathology / Q000628:therapy