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.

Bird flu, also known as avian influenza, is a highly contagious viral disease that primarily affects poultry and wild birds, ...

Tigers and leopard die of H5N1 virus at Gorewada Rescue Centre, Maharashtra, prompting red alert and bio-security measures.

Previous seasonal flu infections and vaccinations may protect us against infection from the highly pathogenic H5N1 bird flu outbreak.

A presumptive positive test of the H5N1 virus found in migrating snow geese in Delaware prompts Maryland State Parks to enter ...

Public health officials have warned that new mutations of bird flu with human flu could have dangerous consequences.

Omaha Henry Doorly Zoo and Aquarium's director of animal health is grateful that bird flu has not hit the zoo in the past ...

They seem to be more clinically affected than other mammals that we’ve seen so far,” Sheldon said. “They tend to get severe ...

A 13-year-old girl in Canada became so sick with H5N1, or bird flu, in late 2024 that she had to be put on a ventilator.

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.

The agency says it is looking for red flags, but the risk to the public still remains low. Meanwhile, a Louisiana patient with a severe case of bird flu showed worrying mutations in the samples ...