Mosquitos with West Nile Virus have spread to more than half the counties in Pennsylvania, the state’s Department of ...

The person who died was identified as an older adult with underlying health conditions. So far this year, 17 human cases of ...

The Allegheny County Health Department on Monday confirmed that additional mosquito samples have tested positive for West ...

After mosquito samples tested positive for West Nile Virus, the Allegheny County Health Department announced today that seven ...

This is the second time this summer that mosquitoes have tested positive for the virus in Allegheny County communities.

One mosquito sample, collected Friday along the 1000 block of North Military Highway, tested positive for the virus, ...

A bird infected with West Nile Virus was recently documented in San Ramon. The bird was Contra Costa County’s first to test ...

The disease causes serious illnesses in about 1 in 150 infected people, and can prove fatal. No human cases have been ...

West Nile virus has been detected in mosquitoes across New York City, according to the city’s Department of Health and Mental ...

In Arizona, mosquito-borne viruses are most likely spread from May through October during the peak of mosquito activity.

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The risk of West Nile virus is currently elevated in Larimer County, according to health officials. The Larimer County ...