While no human cases have been reported in Shasta County this year, two cases have been confirmed in other California counties. West Nile virus showed up in Shasta County mosquitoes for the first time in 2025, according to Shasta Mosquito and Vector ...

Bay State health officials are reporting the first confirmed case of West Nile virus in an animal this year, as people are urged to take precautions against mosquito bites. A goat was recently exposed to the virus in Lunenburg in Worcester County, the Department of Public Health announced on Tuesday.