Stephen J. Schueler, M.D.

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West Nile Virus Transmission

Facts about West Nile virus:

  • The West Nile virus exists mainly in birds.
  • Mosquitoes pass the virus from birds to humans.
  • The West Nile virus does not spread from person to person.
  • The incubation period (time from infection to the development of symptoms) for West Nile virus is approximately 2 weeks.

Last Updated: Sep 2, 2008 References
Authors: Stephen J. Schueler, MD; John H. Beckett, MD; D. Scott Gettings, MD
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PubMed West Nile Virus References
  1. Calisher CH. Medically important arboviruses of the United States and Canada. Clin Microbiol Rev. 1994 Jan;7(1):89-116. [8118792]
  2. Mackenzie JS, Gubler DJ, Petersen LR. Emerging flaviviruses: the spread and resurgence of Japanese encephalitis, West Nile and dengue viruses. Nat Med. 2004 Dec;10(12 Suppl):S98-109. [15577938]
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