In light of the ongoing global spread of the H5N1 avian influenza, U.S. public health experts are reassured that current ...

The genetic analysis of the H5N1 avian flu virus in specimens from the nation's first severely ill hospitalized patient in ...

NIH Officials Assess the Threat of H5N1 Bird Flu - Remain Focused on Monitoring the Virus and Evaluating Changes ...

Highly pathogenic avian influenza A(H5N1) viruses have caused widespread infections in dairy cows and poultry in the United ...

The virus in the first severe human bird flu case in the U.S. was found to have mutated. Newsweek's live blog is closed.

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

Highly pathogenic H5N1 avian influenza A virus (HPAI H5N1) remains a low risk to the general public, and public health ...

The Centers for Disease Control and Prevention (CDC) has identified mutations in a strain of the avian influenza virus H5N1, ...

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

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.

The CDC detected a change in the strain that would allow the virus to more easily travel through human airways.

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