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First Confirmed H5N1 Case in Sheboygan County, Wisconsin

Oneida County, WI – On April 4, 2025, a case of Highly Pathogenic Avian Influenza (HPAI) H5N1, also known as “Bird Flu,” was confirmed in a commercial poultry flock in Sheboygan County, Wisconsin. The Wisconsin Department of Agriculture, Trade and Consumer Protection (DATCP), in coordination with the U.S. Department of …