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

The fatality rate for H5N1 highly pathogenic avian influenza in humans has historically been high, with more than half of people dying. Why, then, is the current H5N1 bird flu outbreak—which has ...

Avian influenza, or bird flu, is highly infectious in birds and usually fatal. While it doesn't spread to humans nearly as much, it has a high fatality rate.

Bird flu was nearly everywhere in the U.S.—in chickens, cows, pet cats and even humans. Cases have gone down, but experts ...

For months, bird flu was seemingly everywhere in the U.S.: news headlines reported the highly pathogenic H5N1 avian influenza ...

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

Eagles are sacred for many Native Americans, who can obtain dead birds for religious use through the federal government. Bird ...

Bird flu is already ... pneumonia when the disease gets severe—can hit birds, ... to infection—and there’s simply no way to reach every bird, says Becky Poulson, an avian-flu researcher at ...

Bird flu appears to be on the move. A particularly nasty strain of the H5N1 virus is currently causing the worst outbreak of the disease among birds since it was first identified in China in 1996 ...

Human cases of avian flu are still very rare, but when they do occur, they can be fatal. There have been reports of 889 cases and 463 influenza-related deaths from 23 different countries worldwide ...

Piles of dead crested terns are seen in the WA tourist town of Coral Bay, but what caused them to perish is yet to be ...