A new strain of bird flu, H5N9, has been detected for the first time in the United States, raising concerns about how it continues to spread.

While it's tragic and alarming to see a massive die-off, it's not uncommon for birds that travel in such large populations.

As California's Central Valley makes headlines for the growing number of people testing positive for the bird flu from exposure to dairy cows, Rais Vohra, MD, professor at UC San Francisco, Fresno and ...

UC San Francisco's Rais Vohra, MD, explains recent increase in reported virus infections and the risks of consuming raw cow’s ...

A new variant of the H5N1 bird flu — the same one that led to the death of a Louisiana man — has for first the first time ...

Two rare bird flu strains have emerged since late January, prompting public health concerns during a freeze on federal health communications.

Nearly 119,000 birds have been culled at a farm in California after a bird flu called H5N9 was detected among the poultry ...

H5N9 is “not commonly seen in poultry in general,” says Eman Anis, assistant professor at the University of Pennsylvania ...

Over 1 billion chicken wings are estimated be eaten during the Super Bowl this Sunday. Will the recent 'bird flu' cases ...

Experts stressed that the new strain did not itself appear to be an immediate human threat. But the rise of a new strain is troubling and points to the risk of a viral phenomenon known as ...

A new strain of highly pathogenic bird flu (H5N9), which has never been seen in the United States before, was recently discovered on a duck farm in ...