The virus is spreading among animals, while viral mutations raise concerns about potential adaptation to human hosts.

Public health officials have just reported the first known “severe” case of bird flu in the United States. There are now 61 ...

The CDC determined the person was likely exposed to H5N1 from sick or dead birds in a backyard flock – the first time a U.S.

The bird flu outbreak has spread to all 50 states, these maps show. Here are the symptoms and what to do if you think you ...

The Biden administration's response to H5N1 avian influenza, or bird flu, has been lackluster, and infectious disease experts ...

The CDC has revealed the red flags it is monitoring for that suggest that bird flu was about to become the world's next pandemic.

When, where and how the H5N1 bird flu virus may evolve and its capacity to spark a pandemic is hard to predict — in part, ...

The CDC determined the person was likely exposed to H5N1 from sick or dead birds in a backyard flock – the first time a U.S. case has been linked to a backyard flock. Since April 2024 ...

The H5 bird flu in question is officially known as the A/H5N1 avian virus. It is a virus that originates and propagates among birds, which can cause influenza in animals infected with it.

There are now 61 confirmed cases across eight states. Colorized transmission electron micrograph of avian influenza A H5N1 virus particles (yellow). [Photo: CDC and NIAID] BY Michael Grothaus 4 ...