MAINE ANIMAL HEALTH OFFICIALS RESPOND TO AVIAN INFLUENZA Current Situation Since DACF’s March 17 update, USDA’s National Veterinary Services Laboratories confirmed the presence of highly pathogenic avian influenza (HPAI) in samples taken from small flocks of non-commercial backyard birds (non-poultry); Lincoln County (March 17); Knox and York Counties (March 19); Cumberland County (March 22); and read more Highly Pathogenic Avian Influenza Situational Report, March 31, 2022