Some viruses mutate more rapidly than others. Learn more about why that is and what that means for your health.

As the seasonal flu picks up, there are even more opportunities for the bird flu to acquire mutations as the different influenza viruses mix. A 13-year-old girl in British Columbia who was ...

Flu cases are through the roof across the U.S. right now. And, while cold and flu season always packs a punch, it feels like this year has been especially bad. That's because a common strain of flu ...

Scientists have discovered that H5N1, the strain of highly pathogenic avian influenza virus currently spreading in U.S. dairy cows, only needs a single mutation to readily latch on to human cells ...

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 New ...