There is only one confirmed case in northern IL, northwest of Rockford.

There was a suspected case near Tremont (close to Peoria), but I just read in the Sunday Peoria paper that the test came back negative. Here is where you can get the latest info from the dnr:
www.dnr.state.il.us/pubaffairs/2002/CWD.htm

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Live: Oregon, IL
Hunt: Knox County, IL