On Apr. 16, 2022, the U.S. Department of Agriculture’s (USDA) Animal and Plant Health Inspection Service (APHIS) confirmed the presence of highly pathogenic avian influenza (HPAI) in a commercial layer chicken flock in Lancaster County, Pennsylvania and a non-commercial backyard flock (non-poultry) in Utah County, Utah.

HPAI in birds is very contagious and can cause serious disease and high mortality in domestic poultry such as chickens, quail, pheasants, guinea fowl, and turkeys.