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 layer flock in O’Brien County, Iowa. This is Iowa’s eighth detection of H5N1 HPAI within poultry in 2024.