H5N1 bird flu is spreading among animals and humans, raising concerns about mutation risks. While human cases are mild, ...

The recent appearance of the H5N1 bird flu in pigs does raise viral reassortment concerns. Here's what we know about this ...

A recent study shows a mild increase in the H4N1 strain of bird flu transmissibility through air compared to older variants.

President-elect Donald Trump’s nominee for the nation’s top health job, Robert F. Kennedy Jr., has vowed to allow wider ...

You may have encountered the term “bird flu” increasingly online and in the media. It refers to a highly pathogenic avian influenza (HPAI) A, classified as H5N1. Wild birds carry and transmit this ...