When was West Nile Virus (WNV) first found in California?

West Nile Virus (WNV) first appeared in California in 2002 with the identification of one human case. In 2003, three human cases occurred in California and WNV activity was detected in six southern California counties. By 2004, WNV activity was observed in all 58 counties in California and 830 human infections were identified. Click Here for a summary of West Nile Virus in California in 2004.

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1. What is West Nile Virus?
2. What are the symptoms of WNV?
3. When was West Nile Virus (WNV) first found in the United States?
4. When was West Nile Virus (WNV) first found in California?
5. How is West Nile Virus (WNV) detected and monitored in California?
6. How is West Nile Virus transmitted?
7. How soon do infected people get sick?
8. How is West Nile Virus (WNV) infection treated?
9. What should I do if I think I have West Nile Virus (WNV)?
10. If you have had West Nile Virus (WNV) are you immune (protected) to further infections?
11. Who is at greatest risk of getting severely ill from West Nile Virus?
12. Can animals get sick from West Nile Virus (WNV)?
13. What can a person do to prevent getting sick from West Nile Virus?
14. Can the public assist in detecting West Nile Virus by reporting dead birds?
15. What are state and local agencies doing to reduce the risk of West Nile Virus (WNV) transmission?