A 13-year-old girl in British Columbia who was hospitalized with bird flu for several weeks late last year harbored a mutated version of the virus, according to a report published this week in the ...

The virus is known as avian flu, bird flu — or scientifically H5N1. "That's in the back of people's minds, that the virus could not only transmit from human to human, but in addition cause very ...

The mutations in the bird flu, or H5N1, viruses that caused severe infections in British Columbia and Louisiana both occurred in a protein on the surface of the virus that allows it to attach to ...

In severe bird flu cases, the virus can mutate as it lingers in the body As the seasonal flu picks up, there are even more opportunities for the bird flu to acquire mutations as the different ...