FAQs about West Nile Virus

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Expand/Contract Questions and Answers

  • What is West Nile virus?

  • How do people get infected with West Nile virus?

  • Who is at risk for infection with West Nile virus?

  • Is there a vaccine available to protect people from West Nile virus?

  • How soon do people get sick after getting bitten by an infected mosquito?

  • What are the symptoms of West Nile virus disease?

  • Who is at risk for serious illness if infected with West Nile virus?

  • What should I do if I think a family member might have West Nile virus disease?

  • How is West Nile virus disease diagnosed?

  • What is the treatment for West Nile virus disease?

  • When do most cases of West Nile virus disease occur?

  • Where do most cases of West Nile virus disease occur?

  • How can people reduce the chance of getting infected?

  • Why do my state health department and CDC sometimes report different numbers of West Nile virus cases?

  • What are the symptoms?

  • What is the incubation period in humans for WN encephalitis?

  • How long do symptoms last?

  • I think I have symptoms of WNV....what should I do?

  • How do health-care workers test for WNV?

  • How is West Nile Encephalitis treated?

  • What can I do to reduce my risk of becoming infected?

  • Is there other insect repellants we can use?

  • Is there a vaccine against West Nile Encephalitis?

  • How do people get infected with WNV?

  • My area has reported +mosquitoes, horses, and people with WNV, am I likely to get sick?

  • Can I get WNV from another person?

  • I am pregnant, am I or my unborn child at risk?

  • Can I get WNV directly from the birds?

  • Who is at risk for getting WNV Encephalitis?

  • Is WNV transmitted by blood transfusion or organ donation?

  • I had WNV. Can I still donate blood?