"The flu" has several strains, with flu A and flu B considered the most common and most severe. Here's what to know as flu ...

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 ...

This flu season medics have been struck by the uptick of cases involving the type B flu virus, which has been predominating the season for the first time in 27 years. Influenza can be split into four ...

A resident doctors’ strike is set to heap pressure on the NHS next week after new figures revealed a sharp increase in flu cases across England.An average of 2,660 flu patients were hospitalised daily ...