The U.S. government failed to eliminate the virus on dairy farms when it was confined to a handful of states. Now at least 875 herds across 16 states have tested positive.

As more cases of bird flu are reported across species and locations, states across the country are taking precautionary ...

The rise of bird flu across farms in California has raised questions about the virus and its potential threat to humans.

The HPAI H5N1 virus has spread globally, infecting birds, mammals, and some humans. Most human cases are mild.

The latest weekly report from the Arkansas Department of Health shows flu activity is increasing significantly in the state.

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

() − The Centers for Disease Control and Prevention and other federal agencies are closely monitoring the spread of the HN51 avian influenza, commonly known as the bird ...

CDC map shows illness activity by state, with the darker red/purple shades the most active. U.S. Centers for Disease Control ...

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

A case of bird flu has been confirmed in commercial poultry at a farm in East Yorkshire. The virus, also known as highly ...