The Illinois Department of Public Health (IDPH) announced the first 2024 death of an Illinois resident with West Nile virus (WNV). The individual, who was in their 80’s and lived in Lake County, had an onset of symptoms of WNV in mid-August and died soon after. IDPH is also reporting nine non-fatal cases of WNV confirmed to date this year. West Nile virus is transmitted through the bite of a Culex mosquito, commonly called a typical mosquito, which has picked up the virus by feeding on an infected bird. Common symptoms of WNV include fever, nausea, headache and muscle aches. Symptoms may last from a few days to a few weeks. IDPH encourages the public to Fight the Bite and take steps to prevent WNV by practicing the three “R’s” – reduce, repel, and report:

• REDUCE – make sure doors and windows have tight-fitting screens. Repair or replace screens that have tears or other openings. Try to keep doors and windows shut.

Eliminate, or refresh each week, all sources of standing water where mosquitoes can breed, including water in bird baths, ponds, flowerpots, wading pools, old tires, and any other containers.

• REPEL – when outdoors, wear shoes and socks, long pants and a light-colored, long-sleeved shirt, and apply an EPA-registered insect repellent that contains DEET, picaridin, oil of lemon eucalyptus, or IR 3535 according to label instructions. The CDC does not recommend use of products containing oil of lemon eucalyptus or para-menthane-diol on children under 3. Consult a physician before using repellents on children under 3.

• REPORT – report locations where you see water sitting stagnant for more than a week such as roadside ditches, flooded yards, and similar locations that may produce mosquitoes. The local health department or city government may be able to add larvicide to the water, which will kill any mosquito larvae.