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 dozen more dairy herds in California have been stricken with bird flu as the virus continues to infect animals and humans ...

The patient in Louisiana who was hospitalized with severe bird flu illness was found to have a mutated version of the virus.

Newsom's California emergency order came on the heels of an announcement from the U.S. Centers for Disease Control and ...

Dr Leana Wen said Biden should do as much as he can to battle the bird flu virus during his last days as president.

A dozen more dairy herds in California have been stricken with bird flu as the virus continues to infect animals and humans around the U.S. Nearly 700 herds in the state — or 71 percent of all herds — ...

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

Two commercial poultry facilities and one backyard flock in the state were the latest instances of highly pathogenic avian ...

Federal health officials say that not only has a Louisiana resident contracted the first severe case of bird flu in the U.S., ...

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

The call to authorize a vaccine comes after the CDC announced that a person in Louisiana was hospitalized with the country's first known case of severe illness caused by the virus earlier this month.

Amid a "concerning" new mutation in bird flu that may indicate the virus could begin to more easily infect humans, what are ...