The progression of the species-jumping disease has been unprecedented, including the first-ever U.S. cases of infections in ...

While the H5N1 bird flu keep spreading, the first reported H5N9 outbreak in the United States has been identified on a duck ...

“It’s been gradually spreading but recently, somehow, for reasons that at least I don’t understand, its spread around the world has become much more prominent and much more widespread ...

State officials are warning flock-owners in Connecticut that they should take precautions, including limiting traffic on their property, to prevent the spread of the avian flu. H5N1, also known ...