The H5N1 avian influenza virus is mutating to evade immune defenses in mammals following prior infection or vaccination.

The U.S. reported the first outbreak of the deadly H7N9 bird flu on a poultry farm since 2017, as the country continues to ...

With outbreaks of bird flu on farms, Human Health and Services Secretary Robert F. Kennedy has a suggestion to fight the flu: ...

Q: What is avian influenza? Avian influenza, also known as bird flu, is a viral infection that primarily affects birds but ...

Amid a worsening avian flu crisis, staffers have not been hired for the federal agency in charge of pandemic response.

Federal health officials recommend people avoid drinking raw milk, as it can be contaminated with bacteria that poses health ...