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

Public health officials have warned that new mutations of bird flu with human flu could have dangerous consequences.

A genetic analysis suggests the bird flu virus mutated inside a Louisiana patient who contracted the first severe case of the ...

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.

The virus has spread among dairy cattle, humans and other mammals. But officials say the current public health risk is low.

The first 'severe' human case of bird flu has many around the country concerned, but those in New Jersey may not need to feel too alarmed as no human cases have been reported in the Garden State ...

Bird flu infections are rare in people ... 1999 – Two children in Hong Kong are infected by the H9N2 strain. February 2003 – ...

Gov. Gavin Newsom’s state of emergency declaration on Wednesday due to bird flu has raised questions about the H5N1 virus, including how it spreads. There are 61 confirmed human cases of bird ...

Bird flu, or avian influenza, is a respiratory virus that primarily affects birds. Health authorities have been preparing a round of vaccinations to prevent a major outbreak. However, cases have ...

In June of this year, the World Health Organization (WHO) confirmed the death of a person who had contracted the bird flu strain A (H5N2), the first laboratory-confirmed human case of influenza A ...