According to a new study, an evolutionary shift around 2020 helped the bird flu virus adapt better to wild birds.

The number of cases of H5N1 bird flu is growing - but can it be caught by eating chicken? - H5N1 bird flu has infected more than 50 people across seven states, with cases steadily climbing ...

The unidentified man was hospitalized with a high fever, confusion and respiratory distress earlier this month.

Washington state health officials have confirmed the country’s first human case of H5N5 — a strain of avian influenza carried ...

US reports 1st human case of H5N5 bird flu strain in Washington state, with officials confirming no human-to-human transmission so far.

The CDC says bird flu is a disease caused by avian influenza A viruses (H5N1) that usually spread between birds, not people. It occurs naturally among wild aquatic birds. It's very contagious among ...

A dangerous type of bird flu virus (called H5N1) continues to circulate among dairy cows in the US. The virus targets the mammary gland's milk-secreting epithelial cells, causing painful infections in ...

It was a quiet summer for bird flu: Egg prices fell a bit, fewer sick poultry flocks were culled on farms, and officials took a breath. “It was lovely,” said Shauna Voss, the assistant director of the ...

Pasteurization completely inactivates the H5N1 bird flu virus in milk — even if viral proteins linger. Drinking properly pasteurized milk contaminated with avian influenza remnants won’t increase ...