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California Dept. of Public Health - WNV Page

West Nile Virus

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Female mosquito biting human

West Nile virus (WNV), is a disease transmitted to humans, birds, horses, and other animals, by infected mosquitoes. Mosquitoes get the disease from feeding on infected birds and can later pass it on when they bite animals or humans.

WNV is established in San Diego County and can be found in all 58 counties in California! The virus was first isolated in the West Nile district of a Northern Province in Uganda in 1937. It was first detected in the United States in New York City in 1999. From there, the virus spread westward, arriving in California in 2003. West Nile virus is now the most prevalent mosquito-borne disease in the United States.

The Vector Control Program protects communities and the environment by controlling mosquitoes that can transmit diseases to humans.

What's New

See our new Fight the Bite mobile app in action!

Meet the "Fight the Bite" Mobile App

WNV Survivor "Fights the Bite"!

Fight the Bite App Download

  • The Fight the Bite Mobile App is now available at the San Diego County App Store. The Fight the Bite App is used to anonymously report green swimming pools, mosquito breeding and dead birds for treatment or testing.

SD Swat Team Kid's Page - NEW GAMES

Vector Habitat Remediation Program

 

Services                         

General Information         

Report Dead BirdsWNV History
Report Green Swimming PoolsFrequently Asked Questions
Report Mosquito BreedingClinical Information
Mosquito Fish Distribution LocationsHorse Information
 EPA Information on Insect Repellents
  
WNV Activity Updates     Prevention                                       
WNV Cases in San Diego CountyMosquito Prevention
Aerial Larvicide ApplicationGreen Swimming Pools
 Mosquito Fish

 

Education                       

Media                              

Pamphlet LibraryVector Control Goes to School
Request Educational MaterialsFight The Bite Mobile App Public Service Announcement
Request a Presentation"Fight the Bite App Takes on West Nile Virus" Video
Geocaching"Go Blue, Not Green!" Video
Vector Control Goes to School"Stop West Nile Virus" Video Part 1
 "Stop West Nile Virus" Video Part 2
 "Local WNV Survivor Story"
 "Lucha Contra la Picadura del Zancudo" Video
Team Fight the Bite GeocachesQR Codes
 

             

Other Languages          

Español                  Cambodian
Francais                 Laos
Tagalog                  Chinese
Russian                  Tiêng Viêt  
Português              Somali
Hmoob  

 

For More Information On 
WNV Or Other Vectors Contact: 
(858) 694-2888  
vector@sdcounty.ca.gov 
SD Fight the Bite Homepage