"The Chinese poultry lineage may have experienced more vaccine-driven selection compared to other lineages," the researchers wrote.

Seven Delmarva-region commercial operations have now reported cases of the highly contagious virus.

A patient in Louisiana has died from avian influenza in what authorities consider to be the first severe H5N1 infection in a ...

For the first time since the 2022 countrywide outbreak, bird flu hit a poultry producer in Georgia, the nation’s top state ...

Georgia is the nation's largest poultry producing state. Last week, bird flu was found for the first time in a commercial poultry plant in the state.