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.

Public-health experts have been highly critical of the federal and state response to the virus, which was first identified in ...

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

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

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 virologist explains that why this probably isn’t the big one — but that it’s a sign of bad things happening with the virus.

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

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

In a positive finding, the CDC emphasized that there is no evidence the virus has spread from the Louisiana patient to others ...

So far, the H5N1 virus isn't transmitted between people — but the CDC has found a mutation in a human case "concerning" ...