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Statewide CWD information

View yearly and cumulative CWD results maps on our CWD results page.

The Chippewa Valley CWD Advisory team has been formed in response to the CWD positive wild deer from Eau Claire that tested positive in March 2018.

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Contact information
For information on CWD, contact:
Timothy Marien
CWD wildlife biologist
Bureau of Wildlife Management

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

The department may establish a CWD affected area around the location of known positive cases of CWD. There are currently 56 CWD affected counties [PDF], 35 of which have at least one wild and/or captive positive within the county with the remaining within 10 miles of a wild or captive CWD positive in an adjacent county. Of the counties with a CWD positive within the county, 26 counties have had one or more wild CWD positive deer and 20 counties have had one or more captive CWD positive deer, with some counties having both within the county borders. The CWD affected counties are different than the counties which have baiting and feeding bans.

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.

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 5-year review of the plan was conducted in 2016-17 as a joint effort sponsored by the DNR, the Wisconsin Conservation Congress and the Wisconsin Department of Agriculture, Trade and Consumer Protection. A stakeholder-based CWD Response Plan Review Committee identified recommendations. Recommendations from the committee can be found in the final report [PDF]. As part of the public input process, County Deer Advisory Councils held a round of special meetings to gather public input on the response plan action items. A report on the review of the CWD response plan was presented to the Natural Resources Board in March 2017. The annual summary of implementation efforts on action items [PDF] outlines implementation steps that have been completed prior to and during the 2017 and 2018 deer hunting seasons and action items that are currently in progress for the 2019 deer hunting season and beyond.

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. Additional information on how to protect the health of Wisconsin's deer herd can be found in the CWD informational brochure.

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

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. A map of registered deer farms [exit DNR] with past and current CWD positive locations is available for additional information.

Last revised: Friday July 19 2019