HPAI Shows Up in a Wisconsin Dairy and Vets Need to Pay Attention

Highly pathogenic avian influenza just crossed another headline threshold. The USDA has confirmed HPAI H5 clade 2.3.4.4b in a dairy cattle herd in Wisconsin, marking the first known detection in cattle in that state. For veterinary professionals, this is less about shock value and more about vigilance, biosecurity, and One Health reality checks.