It's flu season right now, and the U.S. is in the midst of a wave that's straining hospitals. But not all influenza is the same. There are some notable differences between flu A and flu B strains. On ...

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

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 ...

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 ...

Illinois is seeing a "notable increase" in hospital admissions for flu cases, according to state health officials, as levels of respiratory viruses continue to tick up. But which type of flu is ...

Oregon has landed itself in the CDC’s worst tier for flu activity, as have six other states. Arkansas, Kansas, Louisiana, ...

It's flu season right now, and the U.S. is in the midst of a wave that's straining hospitals. But not all influenza is the same. There are some notable differences between flu A and flu B strains. On ...