Northern California’s first human West Nile virus case of the year has been confirmed in Butte County, according to local ...

An American crow in Walnut Creek was found to be the second bird infected with West Nile Virus, according to the Contra Costa ...

Mosquitoes collected in Anaheim and Garden Grove have tested positive for West Nile virus, the first confirmed cases in Orange County this year.

An American crow from Walnut Creek is the second bird to test positive for West Nile virus, the Contra Costa Mosquito and ...

A crow from Walnut Creek has tested positive for West Nile virus (WNV) in Contra Costa County, confirmed the Contra Costa ...

West Nile virus activity is on the rise in some northern California counties, according to the Sacramento-Yolo Mosquito and ...

Health officials in Butte County have confirmed the first human case of West Nile Virus (WNV) this year. Butte County ...

The Windsor-Essex County Health Unit (WECHU) has reported its first human case of West Nile virus of 2025. That's slightly ...

LOS ANGELES — Public health officials on Tuesday said mosquito samples collected in Anaheim and Garden Grove have tested positive for West Nile virus, the first confirmed virus activity this ...

Nearly 470 cases of West Nile virus, chikungunya, and dengue have been reported so far this year, according to the European ...