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

APHIS classifies the flock as a commercial operation – the state’s first since the U.S. outbreak began in 2022.

The administration said it was committing $306 million toward improving hospital preparedness, early-stage research on ...

Researchers identify 46 mild cases of avian influenza A(H5N1) in U.S. poultry and dairy workers, highlighting low PPE ...

Highly pathogenic H5N1 avian influenza A virus (HPAI H5N1) remains a low risk to the general public, and public health experts in the United States believe that available treatments and vaccines, as ...

An epidemiologist makes the case that a rush of research to stop a swine flu outbreak led to an accidental lab release of an ...

Doctors say the case of a teen left in critical condition shows H5N1 "can cause severe human illness." Mutations in the virus are deepening concerns about the spread of H5N1.

Why the results surprised anyone is itself a surprise. After the state of California began testing dairy herds for highly ...

Most human cases of bird flu in North America have been mild, a fact that’s underscored by a new study of the first 46 ...

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 ...

Avian flu continues to impact US livestock, with the USDA confirming 12 more H5N1 cases in dairy cattle from California. These new detections bring the state’s total to 697 cases and the national ...