Avian influenza A (H5N1) has mutated, so the symptoms of bird flu could change as more people get sick in 2025.

or bird flu, and was admitted to the hospital in recent days, according to the Centers for Disease Control and Prevention. The CDC determined the person was likely exposed to H5N1 from sick or ...

Michigan expert explains risks and research efforts as bird flu resurges, affecting poultry and cattle statewide.

Merced County grapples with severe bird flu outbreak, leading state in cases and third nationally in infected poultry flocks.