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.

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

The administration is committing an additional $306 million toward battling the virus, and will distribute the money before ...

In coming years, the bird flu may cost billions of dollars more in expenses and losses. Worse, the outbreak poses the threat ...

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.

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

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