Researchers are reporting mass die offs of wild birds and sea mammals due to bird flu. They're tracking the deaths to better understand the virus and how it might create a greater threat to humans.

At least four cattle herds in Nevada have tested positive for a strain of H5N1 bird flu never before seen in cows, state ...

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

Bird flu has decimated poultry flocks and infected cattle herds. The risk to humans is currently low, but that could easily ...

Cows in Nevada have been infected with a strain of H5N1 bird flu different from the strain detected in all other herds to this point in the ongoing dairy outbreak. It's the same strain that killed a ...

What you need to know about bird flu. Public health experts are closely watching avian influenza, which has affected chickens ...

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

N ow that bird flu has been detected in animals in all 50 states, and nearly 70 cases have been confirmed in people, health ...

Q&A: From people avoiding wild birds to farmers protecting their animals, Kent State epidemiologist Dr. Tara Smith shares ...

A bill proposal intended to aid Pennsylvania's response to the persistent spread of bird flu that's decimated U.S. poultry and spurred price increases for eggs is quickly moving through the General ...

Indigenous peoples have been largely excluded from the federal government’s planning for the arrival of H5N1. When will this ...

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 ...