LANSING (AP) -- Areas in two Michigan counties no longer are considered potential high risk zones for bovine tuberculosis in livestock. The state Department of Agriculture announced Monday it's dropping high risk designations for the zones in Iosco and Shiawassee counties. The move comes after animal testing in the areas over the last several months revealed no bovine tuberculosis cases. The Shiawassee County area is 100 miles south of the northern Lower Peninsula zone where bovine tuberculosis cases have been concentrated in Michigan. The Iosco County areas are on the border and just south of the bovine TB area. The Shiawassee and Iosco county regions came under scrutiny after bovine TB was confirmed in a couple of deer there in 2007.
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