Ilinois: 2025 West Nile virus

[Shiloh]

Source: https://www.shawlocal.com/lake-count...st-nile-virus/

Lake County sees first 2025 human case of West Nile virus
Resident in their 70s became ill in early July
By Shaw Local News Network
July 19, 2025 at 2:23 pm CDT

The Lake County Health Department and Community Health Center is reporting the first human case of neuroinvasive West Nile virus in Lake County for 2025. A Lake County resident in their 70s became ill in early July, authorities said...

[Shiloh]

Source: https://www.shawlocal.com/my-suburba...ile-in-dupage/

July 24, 2025
Glen Ellyn resident first human case of West Nile in DuPage
By Daily Herald Media Group

Public health officials have announced the first human case of West Nile virus in DuPage County this year.

The individual is a Glen Ellyn resident in their 50s, and the onset of virus symptoms was in mid-July, according to the county health department.

Two other human cases have been reported this year in Illinois, one in Lake County and the other in SWaaccording to the Illinois Department of Public Health...

[Shiloh]

Source: https://www.cbsnews.com/chicago/news...an-cases-2025/

Chicago reports first 3 human cases of West Nile virus in 2025
chicago
By Todd Feurer
Updated on: August 12, 2025 / 6:53 PM CDT / CBS Chicago

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

Chicago Department of Public Health officials said all three people began experiencing symptoms of the mosquito-borne virus in late July or early August. Their ages range from 40 to 80 years old...

[Shiloh]

Source: https://www.wjol.com/first-human-cas...will-county-3/

First Human Case of West Nile Virus Detected in Will County
September 10, 2025 5:07PM CDT

The Illinois Department of Public Health (IDPH) announced the first human case of West Nile Virus (WNV) in Will County. The affected individual is a resident in their 80s who began to feel symptoms in August. The Will County Health Department’s Environmental Health Division has also reported that mosquito batches in 11 different Will County communities have tested positive for WNV this summer.

IDPH has reported that a total of 42 human cases of WNV have now been detected throughout the state, including 39 cases in Northern Illinois. In addition to the case in Will County, 34 were reported in Cook County, Lake County reported two cases and DuPage County and DeKalb County both reported one positive case. In 2024, 69 human cases of WNV were reported throughout the state...

[Shiloh]

Source: https://westsuburbanjournal.com/firs...n-cook-county/


First West Nile virus death of 2025 confirmed in suburban Cook County
Posted on September 17, 2025 by westsuburbanjournal
By Kate D’Avignon

Cook County officials, who said the County has nearly doubled the number of West Nile Virus cases compared with 2024, have confirmed the first Illinois West Nile Virus-related death in 2025.

Lab tests confirmed that a Cook County resident in their 60s died this week after contracting this virus, the Cook County Department of Public Health said in a statement.

The health department did not provide details about where the resident lived, their name or how they contracted the virus.

Since the start of the surveillance period on May 11, suburban Cook County has recorded 33 human cases of West Nile virus, which the department said is nearly double that of last year’s count. Of those reported cases, 22 were neuroinvasive, meaning the virus impacted a patient’s central nervous system. By comparison, 19 cases and five deaths were reported in suburban Cook County last year. Statewide, Illinois logged 69 cases and 13 fatalities related to the virus in 2024...