Officials say a fourth case of chronic wasting disease may have been detected in southern Michigan deer.
The Department of Natural Resources says a hunter from Dewitt Township in Clinton County brought the deer to the Rose Lake check station this week. Preliminary testing suggests the year-and-a-half-old buck may have had the fatal illness. A sample has been sent to a federal laboratory for a final assessment.
Three other infected free-ranging deer have tested positive for chronic wasting disease. All were from Ingham County.
The DNR has designated a "core chronic wasting disease area" consisting of nine townships in Ingham, Clinton and Shiawassee counties. Hunters who kill deer in that area are required to have them tested.
Firearm hunting season begins Sunday across Michigan.
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