Local health officials say Chicago has reached a “high risk” level of the West Nile virus because mosquitoes are testing ...

The risk of West Nile virus in Chicago is considered “high,” as health officials say the area is experiencing “a higher ...

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

Naperville city officials are urging residents to be cautious after two mosquito traps tested positive for West Nile virus.

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

Chicago reports its first three human cases of West Nile virus in 2025, with an early state case and citywide spraying ...

DUPAGE COUNTY, Ill. (WLS) -- The city of Naperville is taking action after mosquitoes there tested positive for West Nile Virus. The traps were on Oleson Drive and Jackson Avenue. Crews have sprayed ...

A West Nile virus survivor shared the story of her harrowing journey with the brain infection she first thought was a stroke.

The patients range from 40 to 80 years old and reside on the Northwest and South sides. The patients’ symptoms began in late ...

The Chicago Department of Public Health said all three patients started experiencing symptoms in late July or early August.

Lake County intensifies mosquito control efforts to combat West Nile virus, following increased numbers of infected mosquitoes in the area, and local health officials advise residents on protective ...