Chronic wasting disease (CWD)
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Chronic wasting disease is a fatal, infectious nervous system disease of deer, moose, elk and reindeer/caribou. It belongs to the family of diseases known as transmissible spongiform encephalopathies (TSEs) or prion diseases. CWD occurs only in members of the cervid or deer family -- both wild and captive. The Wisconsin DNR began monitoring the state's wild white-tailed deer population for CWD in 1999. The first positives were found in 2002.
CWD Monitoring
Additional Materials
- CWD-affected county details
- CWD positive locations by year
- Cumulative positive location in Wisconsin and Illinois
- 2023 positive locations in Wisconsin and Illinois
- 2024 CWD positive locations in southern farmland zone
- 2024 CWD positive locations in central farmland and forest zones
- 2024 CWD positive locations in northern forest zone