West Nile virus is endemic to Los Angeles County. This means it is found naturally in our city environments. During warmer weather, the virus activity increases, which increases the chance for our traps to catch mosquitoes carrying West Nile virus and any other viruses that can be a public health threat.
2019 West Nile Virus Activity
West Nile Virus Positive Mosquito Samples
A sample is a random collection of 10-50 mosquitoes from a trap
|City/Community||Number of WNV+ Mosquito Samples|
|Los Angeles County (91746)||2|
West Nile Virus Positive Dead Birds
|City/Community||Number of WNV+ dead birds|