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

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

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

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

Public health officials are warning residents after mosquito samples from two Boston neighborhoods have tested positive for ...

Each summer and fall, Nebraskans become all too familiar with pesky mosquitoes. A bite from one of these pests can result not ...

On the heels of Mobile County’s second case of the year of West Nile virus, health authorities reported Friday that ...

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

San Diego County is increasing mosquito spraying in La Mesa to counter West Nile virus. Treatments are scheduled early Monday ...

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.

MALHEUR COUNTY, Ore. (KPTV) - The Oregon Health Authority says mosquitoes carrying West Nile virus have been identified in the state. Officials say three mosquito pools - collections of up to 50 ...

Mosquitoes infected with West Nile Virus have been found in Cache County. According to a press release from the Cache Mosquito Abatement District (CMAD), mosquito samples from Cache County have tested ...