Highly Pathogenic Avian Influenza Found in Wisconsin Dairy Herd
A cow eats while standing in a barn at a farm in Malone, Wisconsin.
Photographer: Daniel Acker/Bloomberg
A highly pathogenic avian influenza was found in a herd of dairy cattle in Wisconsin, the latest in an ongoing outbreak of the disease, the US Department of Agriculture said Sunday.
The disease was confirmed through routine milk testing, the federal agency said in a statement. It is the first known case of HPAI in dairy cattle in Wisconsin. There have been cases in only a small number of states this year, the USDA said. In total, 18 states have recorded cases since the outbreak began in March 2024.