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

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

The H5N1 avian flu is circulating in cows and other mammals. Whether it will make a permanent leap to humans is another ...

From the outset of the Trump administration, bird flu, or H5N1 avian influenza, has flown rather conspicuously — and in fact ...

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

Although the avian flu (H5N1) virus may not be making the news as frequently, it is still working hard behind the scenes, ...

Scientists always knew a deadly virus was going to jump from animals to humans: COVID was not the first time it has happened, ...

New York has shut down live poultry markets in response to detected bird flu cases. The outbreak has resulted in the culling of millions of birds nationwide. While human infections are relatively ...

There are 70 confirmed cases of the bird flu among humans in the U.S., as of Tuesday. The CDC said the current public health risk is low.

This map created by Newsweek using Flourish illustrates where the H5N1 bird flu cases have been detected in humans this year, highlighting Texas, Colorado, Michigan and Missouri.

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.

The H5N1 bird flu has been spreading widely among wild birds, poultry and other animals around the world for several years, and starting early last year became a problem in people and cows in the U.S.