MADISON — The Wisconsin Department of Natural Resources announced Thursday that EA H5 Avian Influenza, a strain that is highly pathogenic for poultry, has been detected in wild birds in Wisconsin.
The samples were collected from a Cooper’s hawk and a bald eagle submitted from Dane County, a lesser scaup from Columbia County, a red-tailed hawk from Grant County, a Canada goose from Milwaukee County, and a trumpeter swan from Polk County.
This announcement follows preliminary positive results found by the U.S. Geological Survey’s National Wildlife Health Center and confirmed by the U.S. Department of Agriculture’s National Veterinary Services Laboratory on March 30 and March 31.
On March 14, the Wisconsin Department of Agriculture, Trade and Consumer Protection (DATCP) announced the detection of HPAI in domestic poultry in Jefferson County. The DNR continues to work closely with our state and federal partners to monitor for this virus.
The strain of highly pathogenic avian influenza (HPAI) currently affecting the health of some domestic and wild North American birds is known as EA H5N1. It has caused disease in domestic and wild birds in multiple states since it was first detected in North America in December 2021.
More information about the distribution of Highly Pathogenic Avian Influenza H5 and H5N1 in North America is available on the U.S. Geological Survey website.