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Explore chronic wasting disease

Washburn positiveCWD in NW Wisconsin
information, results and sampling locations.

Know CWD website

Know CWD [exit DNR] General information about CWD in Wisconsin including common misconceptions.

Related sites
Contact information
For information on CWD, contact:
Timothy Marien
CWD wildlife biologist
Bureau of Wildlife Management
608-264-6046

Chronic wasting disease

The Wisconsin Department of Natural Resources began monitoring the state's wild white tailed deer for chronic wasting disease (CWD) in 1999. The first positives were found in 2002 through testing of hunter harvested deer in November 2001.

CWD affected counties

CWD information

From state statute 29.336, Wis. Stats, the department is required to enact a ban on the feeding and baiting of deer in any county that is within 10 miles of any captive or free-roaming deer that tests positive for CWD. There are currently 43 CWD affected counties [PDF]. Of these counties 19 are designated as such due to having a wild CWD positive deer, 10 are within 10 miles of a wild CWD positive deer and 14 have a captive CWD positive or are within 10 miles of a captive CWD positive deer.

Per implementation of the Deer Trustee Report (DTR) rules package, $5 per additional antlerless deer permit sold in CWD-affected counties goes towards CWD testing and monitoring.

CWD response plan

The department has developed a chronic wasting disease response plan to be used from 2010 through 2025. The first five years of the plan was reviewed by the CWD Response Plan Review Committee over the winter of 2016. The committee was comprised of members from the DNR, Wisconsin Conservation Congress and the Wisconsin Department of Agriculture, Trade and Consumer Protection. Recommendations from the committee can be found in the final report [PDF].

Reducing the spread

There are recommended practices to reduce and prevent the spread of CWD [PDF] that can be done through voluntary implementation by Wisconsin citizens. Through the use of these recommendations the potential influence of human related introductions of CWD may be reduced.

Counties are banned from baiting and feeding if a CWD or bovine tuberculosis (TB) positive captive or wild cervid is confirmed in the county or a county is within 10 miles of where a captive or wild cervid was confirmed positive. Questions and answers about enacting baiting and feeding bans in response to CWD detections [PDF].

Carcass movement

There are carcass movement restrictions for moving deer from the CWD affected counties into other counties as well as bringing deer into Wisconsin from other states that have detected CWD.

Deer hunting in Wisconsin

For information about hunting deer in CWD affected areas visit deer hunting in Wisconsin.

Statewide deer hunting season dates.

White-tailed deer farming


As of 2016 there were 389 registered deer farms in Wisconsin. White-tailed deer farming is regulated and licensed by the Wisconsin Department of Agriculture, Trade and Consumer Protection (DATCP) [exit DNR]. However the Department of Natural Resources (DNR) is responsible for regulating white-tailed deer farm fencing. Before you can register your farm with DATCP you must have your fence inspected and receive a deer farm fence certificate from the DNR.

Last revised: Thursday May 18 2017