Officials confirmed the first positive case of Highly Pathogenic Avian Influenza (HPAI) – more commonly known as bird flu – in domestic poultry in Pennsylvania in 2025.

The Pennsylvania Department of Agriculture confirmed the positive case Monday in a 50,000-bird layer chicken flock on a ...

The Pennsylvania Department of Agriculture on Monday confirmed the first case of avian flu in domestic poultry in 2025. The positive case was found in a chicken flock on a commercial farm in Lehigh ...

The first positive HPAI case in Pennsylvania was found within a Lehigh County commercial layer chicken flock, according to ...

The first case of bird flu on a farm in Pennsylvania was detected on a poultry farm in Lehigh County on Monday, the state's ...

State and federal agencies are at the farm “carrying out a comprehensive response plan” to prevent the virus from spreading.

A commercial poultry farm in Lehigh County has Pennsylvania’s first confirmed 2025 case of bird flu in domestic poultry, the state Department of Agriculture said, noting the case affected a ...

U.S. authorities also detected the more common H5N1 strain on the same farm in Merced County, California, they said in a ...