The H5N1 bird flu virus has historically extracted a heavy toll when it infects humans, with nearly half of confirmed cases ...

The CDC declared the end of its emergency response to H5N1 avian flu as a health threat to humans, David Murray writes.

Because H5N1 is a virus specifically evolved to attack birds, it isn’t as good at infecting the cells of mammals — yet. But if you can count on one thing for viruses to do, it’s mutate.

Bird flu was probably circulating in dairy cows for at least four months before it was confirmed to be the highly pathogenic H5N1 virus, according to a new analysis of genomic data by scientists ...

Cambodia today reported its thirteenth human H5N1 avian flu case of the year, part of an overall acceleration of activity ...

The fatality rate for H5N1 highly pathogenic avian influenza in humans has historically been high, with more than half of ...

Declining investment in global health surveillance, research, and scientific innovation are happening as the need for vigilance has never been greater, writes Robert C. Gallo.

H5N1 avian influenza has long been a concerning virus. Since its discovery in 1996 in waterfowl, bird flu has occasionally ...

New versions of the H5N1 virus are increasingly adept at spreading. Suggestions to either let it rip in poultry or vaccinate the birds could backfire.

In other developments, a Chinese research team that studied experimental infections involving different inoculation routes ...

California’s state veterinarian tells U.S. House subcommittee that because infected dairy cattle are allowed to develop ...

Recognizing the critical need for timely and effective diagnostic capabilities, this rapid expert consultation will assess the current “state-of-the-art” for H5N1 diagnostics for humans; identify key ...