The U.S. Department of Agriculture Animal and Plant Health Inspection Service has confirmed the detection of highly pathogenic avian influenza in a dairy herd in Idaho. APHIS shared on March 29 that its National Veterinary Services Laboratories in Ames, Iowa, was working to confirm presumptive positive test results from an Idaho herd; this announcement is a follow-up to that information.
This marks the first known case of HPAI in cattle in Idaho. To date, USDA has confirmed the detection of HPAI in dairy herds in Texas (7), Kansas (2), Michigan (1) and New Mexico (1).