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West Nile Virus
Also known as: WNV Formal name: West Nile Virus Related tests: Antibody tests
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Common Questions
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1. Is there a vaccine for West Nile virus?
2. Is it safe to donate and receive blood?
1. Is there a vaccine for West Nile virus?
Not for humans yet, but there may be one or more vaccines available in the next few years. A vaccine has been developed by mixing West Nile virus with a vaccine for yellow fever, altering the proteins coating the established vaccine. This new vaccine has been successfully tested for safety and effectiveness in animals and is now being tested in humans.
Another potential West Nile virus vaccine that uses an inactive protein (instead of a live virus) also has been developed and undergone some initial testing. It would have the advantage of being able to be given to anyone, even children, pregnant women, or those who are immunosuppressed.
2. Is it safe to donate and receive blood?
Yes. There is no risk for the donor, and WNV nucleic acid testing has been added to the list of extensive testing that is done to make the U.S. blood supply as safe as it can possibly be for the recipients. As an additional tool in reducing WNV in the blood supply, blood collection centers have recently started asking potential donors during WNV season if they have had a recent fever or headache (symptoms of an infection with WNV or other virus).
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This article was last reviewed on
October 30, 2007.
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