Montana health officials have confirmed that two mosquito pools and two horses have tested positive for West Nile virus in 2025.The state has been monitoring mo ...

ADA COUNTY, Idaho — Health officials have detected West Nile virus in mosquito populations across Ada County, marking the first confirmed cases of the season and prompting immediate treatment ...

Five additional neighborhoods in Louisville have had mosquitoes carrying West Nile virus found in them, according to health officials.

Jamestown Canyon virus is the latest pathogen transmissible to people to turn up in a mosquito pool in Madison County.

But the Tuscarawas County Health Department has now confirmed a case of another, more rare mosquito-borne virus. The La Crosse virus has been confirmed in a 66-year-old man from Uhrichsville.

The first West Nile virus activity of the season has been detected in Norfolk, according to the Norfolk Department of Public Health. One mosquito sample, collected Friday along the 1000 block of ...

More mosquitoes in Allegheny County have tested positive for West Nile Virus, the health department announced Monday.

Colorado's first human cases of West Nile virus this year were confirmed in two people who contracted the disease in Adams County likely from infected mosquitos, public health officials said Thursday.

State health officials in Michigan are recommending that residents take precautions against mosquito bites after detecting West Nile virus in the state this year, the Midland Daily News reported.

Jamestown Canyon virus (JCV) was detected in mosquitoes in New Castle, but the risk to humans is considered low.

The Lake County Health Department reported the first human case of West Nile virus in Lake County for the year. The infected resident is in their 70s and became sick in early July, health ...

VANDERBURGH COUNTY, Ind. — Indiana has recorded its first case of the West Nile Virus in 2025. The Indiana Department of Health announced Tuesday that the virus was reported for the first tim… ...