Mosquitoes in Boone County have tested positive for West Nile Virus, and the Health Department recommends taking personal ...

The Boone County Health Department says routine testing shows mosquitos in Belvidere are positive for West Nile virus.

The McLean County Health Department has reported an increase in West Nile Virus in the area, with four mosquito pools testing ...

The first batch of mosquitoes testing positive for the virus was identified on May 9 in Rockford. In 2024, Illinois saw 69 confirmed human cases, resulting in 13 deaths.

West Nile virus has been confirmed in 19 Illinois counties so far this year. The first positive mosquito batch was found on May 9 in Rockford.

The Winnebago County Health Department reported today, Thursday, July 26, that two crows found in Rockford have tested positive for West Nile virus.

Experts explain the warning signs of the illness, and offer advice to protect yourself from mosquitoes and mosquito-borne illnesses.

The worst West Nile outbreak in the U.S. to date came in 2002. That year in Illinois alone, there were 884 cases across the state, and 67 deaths, with 42 of them in Cook County.

The average number of West Nile virus cases in the U.S. varies annually, but the CDC reports that in 2022, 1,132 cases were reported. The disease is most common during the summer and early fall ...

ROCKFORD � A dead crow found in southeast Winnebago County tested positive for West Nile virus � the first sign of the virus found in the county this year.