Most human cases of bird flu in North America have been mild, a fact that’s underscored by a new study of the first 46 ...

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

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

The virus is spreading among animals, while viral mutations raise concerns about potential adaptation to human hosts.

The Centers for Disease Control and Prevention is keeping close eye on pandemic indicators amid bird flu cases arising in the United States.

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

The CDC has revealed the red flags it is monitoring for that suggest that bird flu was about to become the world's next pandemic.

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.

Los Angeles County health officials confirmed the region's first human case of H5 bird flu last week, marking a significant development in the ongoing outbreak that had already affected several ...

Each week some revelation about bird flu seems to flutter through the news cycle. Here's what the latest research is saying ...

"I feel like we should've learned our lesson from COVID, that just because we aren't testing doesn't mean the virus isn't there," Dr. Leana Wen said.

A new mutation and the first severe case of H5N1 bird flu discovered in a human in Louisiana has raised concern among some ...