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Many government agencies and other organizations provide information about West Nile virus online. The links below lead to a selection of them.

CDC does not necessarily endorse the views or information presented on these sites. Furthermore, CDC does not endorse any commercial products or information that may be presented or advertised on any of these sites.

American Society of Microbiology

image of FAQ cover with mosquito
  • Where does the virus come from? How is it spread?
  • Can we predict when and where outbreaks will occur?
  • What factors determine how sick a person will become if they are infected with West Nile virus?

To help answer the many questions people have about this multi-faceted virus, the American Academy of Microbiology has issued a new report entitled FAQ: West Nile Virus.

Get the full report free >>


Published on May 7, 2013
2012 saw a surge of West Nile Virus infections, particularly in the central United States. What exactly is West Nile Virus and why do outbreaks occur?