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Symptoms |
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Fever
Headache
Tiredness
Body aches
Vomiting
Possible skin rash
Swollen lymph glands
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Risk Factors
West Nile virus is rare. Fewer than 1 percent of people who are bitten by a mosquito develop severe symptoms and few mosquitoes carry the infection. Your risk increases if you:
- Spend a lot of time outside.
- Are older than 50. You have a higher chance of getting sick than other people who develop symptoms.
- Live in or have traveled to areas where West Nile virus activity has been identified.
More on West Nile Virus West Nile Virus Questions and Answers Update
In the Encyclopedia:
Yellow fever
This article was reviewed and updated June 2007.
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