Two people sharing a home caught the virus without known exposure to animals. More than 30 human cases have been reported in the United States.

Elephant seals in South America died in massive numbers because the bird flu virus acquired mutations that allowed it to spread among mammals, according to ...

The third human case of H5N1, reported on Thursday in a farmworker in Michigan who was experiencing respiratory symptoms, tells us that the current bird flu ...

A third farmworker in the United States has been found to be infected with bird flu, heightening concerns about an outbreak among dairy cattle first ...

Beef tissue from a sick dairy cow has tested positive for the bird flu virus, federal officials said on Friday.The cow had been condemned to be culled ...

Unpasteurized milk contaminated with H5N1, the bird-flu virus that has turned up in dairy herds in nine states, has been found to rapidly make mice sick, ...

A farmworker in Michigan has been diagnosed with bird flu, state officials announced on Wednesday, making it the second human case associated with the ...

Dr. Luch berated herself for not having thought to test the boy a day earlier, when she might have saved him if she had treated him for influenza.But the ...

The bird flu virus that is spreading through American dairy cows can probably be traced back to a single spillover event. Late last year, scientists ...

Additional testing of retail dairy products from across the country has turned up no signs of live bird flu virus, strengthening the consensus that ...

Federal regulators on Friday said that they had not yet discovered live bird flu virus in the first batch of retail milk samples they tested, a reassuring ...

Federal regulators have discovered fragments of bird flu virus in roughly 20 percent of retail milk samples tested in a nationally representative study, the ...