The Illinois Department of Natural Resources (IDNR) will host public meetings throughout northern and west-central Illinois to provide information on the status of chronic wasting disease (CWD), its effect on free-ranging deer populations and the department’s ongoing efforts to manage the disease.
IDNR staff will be available to discuss current management strategies and answer questions about CWD. Landowners, hunters and concerned citizens are encouraged to attend. CWD remains an important issue and a priority in Illinois’ future deer management discussions.
CWD is a fatal neurological disease that threatens the long-term health of white-tailed deer in Illinois. First documented in Illinois in 2002 near Roscoe, CWD has been detected in 25 counties across the northern edge and northeastern portions of Illinois, and as far south as west-central Illinois. Affected counties now include Adams, Boone, Bureau, Carroll, Cook, DeKalb, DuPage, Ford, Grundy, Jo Daviess, Kane, Kankakee, Kendall, Lake, LaSalle, Lee, Livingston, Marshall, McHenry, Ogle, Peoria, Putnam, Stephenson, Will and Winnebago.
CWD was detected in Adams, Marshall, Peoria, and Putnam counties in February 2025 following routine surveillance of hunter-harvested deer or animals exhibiting clinical symptoms consistent with disease infection. Adams County is the first documented case recorded outside of the leading edge of the CWD endemic region of northern Illinois.