The predicted surge of influenza cases, driven by the new “subclade K” mutation, is hitting Massachusetts emergency rooms as holiday get-togethers put people in close spaces where the flu virus can ...

Increasingly low vaccination rates, more summer indoor gatherings and a new mutation of a highly infectious strain are ...

Many areas of California are experiencing high levels of flu activity, especially amongst children, according to health ...

A fast-spreading new flu strain is gaining a reputation as a monstrous “super flu.” The mutation of influenza A(H3N2) called subclade K is driving up infections across the country, including in New ...

California public health officials cautioned more children are testing positive for the flu this season. Here are flu ...

A rapidly spreading flu strain known as subclade K is dominant in the U.S., but there is no evidence it causes more severe illness. Experts say the term "super flu" is inaccurate as the strain does ...

Flu season is not over yet, experts warn. Is there a second wave coming? Here's how to protect yourself as influenza keeps spreading.

With measles outbreaks, flu spikes, and COVID as a seasonal threat, learn key differences between these contagious diseases, ...

There were more deaths associated with influenza last year than any other year this century, according to the Australia ...