West Nile virus activity in San Gabriel Valley
Our agency reports data related to mosquitoes. Human cases are reported by the L.A. County Department of Public Health and Pasadena Health Department.
The San Gabriel Valley Mosquito & Vector Control District has been tracking West Nile virus activity in mosquito populations since 2003. Dead bird data is stored with California Department of Public Health. You can access the dead bird data HERE.
West Nile virus Facts
- West Nile virus is the most common mosquito-borne disease that affect residents in Los Angeles County
- Public health agencies detect West Nile virus every year in L.A. County. This means the virus is found naturally in our city environments, which means it's endemic.
- Our agency uses routine traps to colect samples of mosquitoes. The mosquito samples are tested for a mosquito-borne diseases, such as West Nile virus. In addition, dead birds, which can carry West Nile virus, are submitted for testing.
