US: Highly Pathogenic Avian Influenza Detected in a Commercial Turkey Flock in Calhoun County in Iowa

(Oct. 2, 2025)
The Iowa Department of Agriculture and Land Stewardship and the United States Department of Agriculture (USDA) Animal and Plant Health Inspection Service (APHIS) have detected a case of Highly Pathogenic Avian Influenza (H5N1 HPAI) in a commercial turkey flock in Calhoun County, Iowa. This is Iowa’s eighth detection of H5N1 HPAI within domestic birds in 2025.