A 13-year-old girl in British Columbia who was hospitalized with bird flu for several weeks late last year harbored a mutated ...

Public health experts are urging vigilance amid recent reports of severe bird flu cases in two North American patients.

The CDC previously confirmed the first severe human case of bird flu in Louisiana, but now the CDC has confirmed a virus ...

In 2024, at least 66 human cases of bird flu have been reported in the United States, each one raising the risk of another ...

A genetic analysis suggests the bird flu virus mutated inside a Louisiana patient who contracted the nation’s first severe ...

Genetic analysis of H5N1 bird flu virus that infected a Canadian teenager shows 'worrisome' mutations, new studies reveal.

"We have outbreaks in poultry in all 50 states," Dr. Leana Wen tells Face the Nation's Major Garrett The post New Bird Flu ...

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

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

“For example, if a human gets infected with a bird flu and also carries a human influenza A virus, these two viruses can ...

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