H5N1 bird flu is branching out. New data from the Centers for Disease Control and Prevention indicates that a second type of H5N1 has likely spread from dairy cows to humans. The CDC and health ...

WASHINGTON — When traces of H5N1 bird flu showed up in cow’s milk last year, it raised fears that the virus could become more infectious to humans. So far, that hasn’t happened, virologist Richard ...

In recent months, the avian influenza virus, commonly known as bird flu, has taken alarming steps toward becoming a bigger ...

Cow udders may provide a hotspot for bird flu and human flu viruses to mingle. The prospect of an outbreak of avian influenza among dairy cattle triggering a pandemic in humans is one step closer than ...

Bird flu is here to stay. The H5N1 avian influenza is proliferating among U.S. cows and there are now two strains circulating among mammals and birds. Though there are only 68 confirmed cases in ...