Mosquitoes tested positive for West Nile virus in Evanston, Glencoe, Glenview, Northbrook and Winnetka according to results from the North Shore Mosquito Abatement District.
The positive tests are the district's first in 2019 according to a Tuesday press release. The five batches of mosquitoes were collected on 20-22. May and tested positive in district laboratories on May 23.
On 24 May, state public health officials reported that DuPage County Health Department staff collected the state's first party positive mosquitoes in the village of Wayne, about 40 miles west of Chicago, according to a press release.
The West Nile virus is transmitted through mosquito bites and can cause a serious and sometimes fatal disease, according to the US Disease Control and Prevention Centers.
Most infected people have no symptoms, but some develop fever, body pain, vomiting, fatigue and weakness, among others.
Residents should take steps to protect themselves, such as using insect repellent, wearing loose fitting clothing, and avoiding outdoors at dawn and dusk, according to the release. Residents should also look around their homes to stand outside water where mosquitoes can breed.
Last year, the Illinois Department of Public Health reported 1