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

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

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

The Bear River Health Department reported two cases of West Nile virus in humans on Friday, following a report of one case in ...

Salt Lake County reported the year's first case as more mosquitoes statewide are testing positive for the infection.

West Nile virus can cause fever-related illness or brain and spinal cord infections, including meningitis or encephalitis.

SHARON, Pa. (WKBN) – For the fifth time this summer, the West Nile virus has been detected in mosquitoes in Mercer County.

The risk for West Nile virus is high in 10 cities and towns in Massachusetts, including Boston, public health officials say.

SALT LAKE CITY — Health officials discovered two confirmed cases of West Nile virus in Cache County, they announced Friday.

A dead bird was found in Calhoun County and tested positive for West Nile Virus at the Michigan Department of Health and ...

Local health officials say Chicago has reached a “high risk” level of the West Nile virus because mosquitoes are testing ...