The mosquitoes infected with the virus were discovered in Nesconset on July 1, Suffolk County health officials said ...

Mosquitoes collected by the Allegheny County Health Department tested positive for West Nile virus in six areas Tuesday.

Two mosquito test samples taken from Hyde Park and West Roxbury have tested positive for West Nile Virus, the Boston Public ...

Boulder County Public Health confirmed that, last week, mosquitoes trapped on the east side of Niwot tested positive for West ...

Mosquitoes are testing positive for the West Nile virus in Louisville's Highlands and Tyler Park neighborhoods.

Mosquitoes in two areas of Weld County have tested positive for West Nile virus, though no human cases have yet been reported ...

The Utah State Public Health Laboratory has confirmed that sample from Cache County have tested positive for West Nile virus.

Oregon has no reports so far of people contracting the virus. But it's still wise to cover up and prevent bites, health officials say.

Allegheny County Health Department officials announced mosquitoes collected in certain parts of the county earlier this month ...

Older adults and immunocompromised people can be at higher risk for developing serious illness or death, the Oregon Health Authority said.

CACHE COUNTY, Utah ( ABC4) — Mosquitoes infected with West Nile Virus have been found in Cache County.

The Oregon Health Authority says mosquitoes carrying West Nile virus have been identified in the state. Governor Tina Kotek ...