Bird flu, also known as H5N1, has been around for decades. But a 2024 discovery came as a surprise to public health experts.

The US Department of Agriculture (USDA) Animal and Plant Health Inspection Service (APHIS) has reported one more H5N1 avian flu detection in dairy cattle, in another herd from Arizona. The virus has ...

A U.S. outbreak of the H5N1 virus has infected nearly 70 people, mostly farm workers, since April 2024. The U.S. Department of Agriculture reported for the first time last week that a second strain of ...