title: [West Nile virus in the United States from 1999 to 2009].
authors.affiliation: State Key Laboratory for Infectious Diseases Prevention and Control, Department of Viral Encephalitis and Arboviruses, Institute for Viral Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing 102206, China.
authors.forename: Yu-xi
authors.initials: YX
authors.lastname: Cao
authors.forename: Xiao-yan
authors.initials: XY
authors.lastname: Gao
authors.forename: Guo-dong
authors.initials: GD
authors.lastname: Liang
mesh_terms: D006801:Humans; D014481:United States / Q000453:epidemiology; D014901:West Nile Fever / Q000453:epidemiology*