What are the symptoms of WNV?
  • There are no symptoms in majority of those who contact WNV. Up to 80 percent of people infected with WNV do not develop symptoms.
  • Febrile illness - About 20 percent of infected people will develop a fever with other symptoms such as headache, body aches, joint pains, vomiting, diarrhea, or a rash. Most people with this type of WNV disease recover completely, but fatigue and weakness can last for weeks or months.
  • Severe symptoms occur in less than one percent of infected people. These individuals develop inflammation of the brain or surrounding tissues. The symptoms of neurologic illness can include headache, high fever, neck stiffness, disorientation, coma, tremors, seizures, or paralysis.

Show All Answers

1. What is West Nile Virus?
2. What are the symptoms of WNV?
3. How does WNV spread?
4. What happens if a trap tests positive for WNV?
5. Is there a vaccine available to protect people from WNV?
6. How soon do people get sick after getting bitten by an infected mosquito?
7. Who is at risk for serious illness if infected with WNV?
8. What is the treatment for WNV disease?
9. How can people reduce the chance of getting infected?