A new study by biologists from the Scripps Research Institute shows that a bird flu virus is just a single mutation away from ...

Researchers stress that HPAI H5N1 must be closely monitored for genetic changes, especially as cases rise in humans exposed to infected birds, cows, or mammals. The highly pathogenic avian ...

Wildlife World Zoo in Litchfield Park, Arizona, has identified avian flu, specifically the H5N1 strain, in its birds.

The H5N1 avian influenza virus continues to spread in the USA. It has infected poultry farms in 49 states, 718 dairy herds in ...

State health officials emphasize that there is no evidence that human-to-human transmission of bird flu — avian influenza H5N1 — is happening in Arizona or anywhere in the U.S. to date.

Since its discovery in 2021, the H5N1 virus has been able to bond with receptors in avian species, marine mammals, and even (occasionally) humans. By 2024, that virus was spreading widely in the ...