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

A new flu strain is rising in states across the country – and it’s worse for children. An increasing number of flu samples are coming back positive for highly contagious influenza B, according to the ...

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 ...

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 ...

115 children have died from flu this winter with this past week seeing one of the largest spikes in fatalities since January.

Every flu season, injectable vaccines prime the immune system to produce antibodies that circulate through the bloodstream.