First CWD case in wild deer in Ohio triggers mandatory sampling A sample from a white-tailed deer in Wyandot County, Ohio, tested positive for chronic wasting disease (CWD) Dec 10, according to the Ohio Department of Natural Resources (ODNR) yesterday, the first in a wild deer in the state. A Daily Record report from May says there have been 21 cases of CWD at three captive deer farms in Ohio since 2015. The new CWD case triggers enhanced surveillance within a 10-mile radius of the harvesting site, which was private property. Additionally, for the rest of the hunting season, which closes next Feb 7, deer samples will be mandated from all harvests in the county's Killdeer Plains Wildlife Area.