Expanding Distribution of Chronic Wasting Disease

Science Center Objects

Chronic wasting disease (CWD) has been detected in 26 US states and three Canadian provinces in free-ranging cervids and/or commercial captive cervid facilities. CWD has been detected in free-ranging cervids in 25 states and two provinces and in captive cervid facilities in 17 states and three provinces.

Distribution of Chronic Wasting Disease in North America (Updated)

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Map of North America showing locations where chronic wasting disease has been detected.

Distribution of Chronic Wasting Disease in North America, updated July 19, 2021.

(Credit: Bryan Richards, USGS National Wildlife Health Center. Public domain.)

Distribution of CWD in the United States

State Free-ranging cervids Captive Cervids
Arkansas Y  
Colorado Y Y
Illinois Y Y
Iowa Y Y
Kansas Y Y
Maryland Y  
Michigan Y Y
Minnesota Y Y
Mississippi Y  
Missouri Y Y
Montana Y Y
Nebraska Y Y
New Mexico Y  
New York Y Y
North Dakota Y  
Ohio Y Y
Oklahoma   Y
Pennsylvania Y Y
South Dakota Y Y
Tennessee Y  
Texas Y Y
Utah Y Y
Virginia Y  
West Virginia Y  
Wisconsin Y Y
Wyoming Y  
Distribution of CWD in Canada
Province Free-ranging cervids Captive Cervids
Alberta Y Y
Quebec   Y
Saskatchewan Y Y

Distribution of CWD Globally

Country Free-ranging cervids Captive cervids
Canada Y Y
Finland Y  
Norway Y  
South Korea   Y
Sweden Y  
United States Y Y

Data on CWD positive counties and states in the United States is released annually at https://doi.org/10.5066/P9HQKKFO.

 

Distribution of Chronic Wasting Disease in North America, in Relation to Tribal Lands in the Conterminous United States

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Map of North America showing locations of chronic wasting disease in red and tribal lands in grey.

Distribution of Chronic Wasting Disease in North America, in Relation to Tribal Lands in the Conterminous United States. Updated on April 1, 2021.

(Credit: Bryan Richards, National Wildlife Health Center. Public domain.)

Home Zip Codes of Hunters Harvesting Deer in Dane, Iowa, Richland, and Sauk Counties, Wisconsin, 2016-2017

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Home Zip Codes of Hunters Harvesting Deer in 4 WI Counties 2016-17

Home Zip Codes of Hunters Harvesting Deer in Dane, Iowa, Richland, and Sauk Counties in Wisconsin from 2016-2017

(Credit: Bryan Richards, USGS. Public domain.)

Deer

Deer (Public domain)