The Animal and Plant Health Inspection Service (APHIS), United States Department of Agriculture (USDA), is issuing this Federal Order to prevent the spread of highly pathogenic avian influenza (HPAI). HPAI is a contagious viral disease of domestic poultry and wild birds. HPAI is deadly to domestic poultry and can wipe out entire flocks within a matter of days. HPAI is a threat to the poultry industry, animal health, human health, trade, and the economy worldwide. In the US, HPAI has now been detected in dairy cattle.
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