A virologist explains that why this probably isn’t the big one — but that it’s a sign of bad things happening with the virus.

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

"CDC's overall assessment of the immediate risk to the public's health from H5N1 bird flu, which remains low," the announcement stated, citing the Louisiana case. On Wednesday, Wisconsin officials ...

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.

A person was hospitalized with a severe case of bird flu in Louisiana, according to the Centers for Disease Control and ...

"CDC's overall assessment of the immediate risk to the public's health from H5N1 bird flu, which remains low," the announcement stated, citing the Louisiana case. On Wednesday, Wisconsin officials ...

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

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 ...