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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.

In 2017, Wisconsin Act 41 amended Wisconsin Act 240 to limit the time during which the baiting and feeding of deer may be prohibited following a positive test for CWD or TB. Please check the baiting and feeding regulations page frequently for updates on counties in which baiting and feeding prohibitions are in effect.

CWD affected counties

CWD information

The department may establish a CWD affected area around the location of known positive cases of 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. The CWD affected counties are different than the counties which have baiting and feeding bans.

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.

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: Monday September 25 2017