The United States has reported its first outbreak of H5N9 bird flu in poultry on a duck farm in California, the World ...
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 bird flu has been infecting American flocks for years, leading to a series of infections and increased egg prices. But ...