title: West Nile Virus.
abstract: West Nile Virus (WNV), a mosquito transmitted disease, made its first appearance in North America in 1999 and quickly spread westward. It arrived in Kansas in 2002, re-emerged in 2003, and is expected again in 2004. The natural cycle is from infected bird to mosquito, with humans and horses as accidental (dead-end) hosts. WNV is usually asymptomatic in humans, but can cause a wide spectrum of disease. There is currently no human vaccine and treatment is symptomatic only. A best preventive measure combines personal protection to prevent mosquito bites with reducing the number of mosquitoes.
authors.affiliation: Division of Health, Kansas Department of Health and Environment, USA.
authors.forename: Gail R
authors.initials: GR
authors.lastname: Hansen
mesh_terms: D000818:Animals; D001715:Bird Diseases / Q000453:epidemiology / Q000517:prevention & control / Q000635:transmission; D001717:Birds; D021821:Communicable Diseases, Emerging / Q000453:epidemiology / Q000517:prevention & control* / Q000635:transmission* / Q000662:veterinary; D009033:Culicidae / Q000821:virology; D004196:Disease Outbreaks / Q000517:prevention & control / Q000706:statistics & numerical data; D006734:Horse Diseases / Q000453:epidemiology / Q000517:prevention & control / Q000635:transmission; D006736:Horses; D006801:Humans; D007302:Insect Repellents; D007303:Insect Vectors / Q000821:virology; D007615:Kansas / Q000453:epidemiology; D009032:Mosquito Control / Q000379:methods; D011159:Population Surveillance; D014901:West Nile Fever / Q000453:epidemiology / Q000517:prevention & control* / Q000635:transmission* / Q000662:veterinary; D014902:West Nile virus; D015047:Zoonoses / Q000453:epidemiology / Q000635:transmission
chemical_list: D007302:Insect Repellents