The United States Department of Agriculture’s (USDA) Animal and Plant Health Inspection Service (APHIS) has 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.
Samples from the Pennsylvania flock were tested at the Pennsylvania Veterinary Laboratory and samples from the Utah flock were tested at the Utah Veterinary Diagnostic Laboratory, both part of the National Animal Health Laboratory Network. The cases were confirmed at the APHIS National Veterinary Services Laboratories in Ames, Iowa.
APHIS is working closely with state animal health officials in Pennsylvania and Utah on joint incident responses. State officials quarantined the affected premises, and birds on the properties will be depopulated to prevent the spread of the disease. Birds from the flocks will not enter the food system.
According to the U.S. Centers for Disease Control and Prevention, the recent HPAI detections do not present an immediate public health concern. No human cases of these avian influenza viruses have been detected in the United States.
As part of existing avian influenza response plans, Federal and State partners are working jointly on additional surveillance and testing in areas around affected flocks. The United States has the strongest AI surveillance program in the world, and USDA is working with its partners to actively look for the disease in commercial poultry operations, live bird markets and in migratory wild bird populations.
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