Public health officials on July 22 said mosquito samples collected in Anaheim and Garden Grove have tested positive for West Nile virus, the first confirmed virus activity this year.

Contra Costa County confirms its first 2025 avian West Nile virus case in a California scrub jay, prompting community engagement and preventive measures.

Mosquitoes testing positive for West Nile virus were discovered in Anaheim and Garden Grove, the Orange County Mosquito and ...

Public health officials said mosquito samples collected in Anaheim and Garden Grove have tested positive for West Nile virus.

There have been three human cases of West Nile Virus in California this year, with one fatal case, according to the ...