The risk level for West Nile virus in Boston has been raised to high, the Boston Public Health Commission said Wednesday.

West Nile Virus is transmitted through the bite of an infected mosquito. While many people infected with the virus do not experience symptoms, some may develop fever, headache, body aches, or more ...

Mosquitoes carrying West Nile virus have officially been detected across all five boroughs, according to the New York City ...

The Harrison County Health Department says multiple mosquito pools in the county have tested positive for West Nile virus, ...

Cumberland County tackles recent positive West Nile Virus samples with evening mosquito spraying in 12 municipalities.

Chicago reported three human cases of West Nile virus in the last month as city officials warn the risk of contracting the ...

The Knox County Health Department reported reported 2025’s first two cases of La Crosse, a virus spread by mosquitos last ...

Mosquito control spraying in North Knoxville will start Aug. 14 and will occur between 8 p.m. and 10 p.m., weather permitting ...

Spraying will take place Wednesday, Thursday and Monday from dusk through 11 p.m., according to county officials.

Chicago public health officials on Tuesday confirmed the city's first three human cases of West Nile virus in 2025.