State health officials are seeking to confirm the vaccine status of the four self-reported cases, but no mutations of the ...

A new study led by recent undergraduate student Caitlyn Nojiri and co-authored by astronomy and astrophysics professor Enrico ...

The virus is spreading with greater speed among animals, with transmission to humans increasing. But risk to the general ...

A new strain of avian flu, H5N1, has spread to dairy cows and domestic cats in the U.S., with a dairy worker in Nevada ...

With so much H5N1 circulating in the U.S., scientists worry we are a few mutations away from a potential human pandemic.