West Nile virus (WNV) is a mosquito-borne disease first detected in the United States in 1999. WNV first appeared in California in 2003 and by 2004, WNV had spread to all 58 counties.
Helpful hints to reduce the risk of West Nile Virus, click here.
West Nile Virus Activity Continues in Fresno County
Information for Medical Providers
General Information
News Releases
For more information about WNV or to report dead birds, visit the California Department of Public Health website at www.westnile.ca.gov or call 1-877-WNV-BIRD.
Center for Disease Control - West Nile Virus
California Department of Public Health - West Nile Virus
California Vectorborne Disease Surveillance System (Arboviruses)
Fresno County Environmental Health Vector Control