The number of people getting sick with influenza B has gone up for three weeks straight, now making up about a third of flu ...

Add Yahoo as a preferred source to see more of our stories on Google. It's flu season in Massachusetts, and most sick Bay Staters are coming down with Influenza Type A, according to recent health data ...

Add Yahoo as a preferred source to see more of our stories on Google. The new flu variant, H3N2 subclade K, is a mutation of the common flu A subtype, which is often the flu "going around" come late ...

Flu season is starting to tick up in the U.S. And, looking at clues from other countries, we may be in for a rough winter. But not all influenza is the same. And there are some notable differences ...