Known as subclade K, a new, mutated flu strain that has dominated in Europe and Asia is now rapidly spreading across the US.

A novel influenza variant called subclade K appears to be driving an uptick in cases and hospitalizations throughout the U.S.

Experts share tips to protect children and family members from the flu -- including the subclade K variant -- ahead of the ...

They are bracing for a brutal season, driven by a new and alarming variant that is expected to circulate widely.

A new version of the common flu is spreading globally. Virus evolutions are normal, and this one is not necessarily believed ...

The number of flu patients in hospital has risen by 18%, following a 55% increase the week before. The NHS warns "we are ...

Tis the season for sniffling, coughing and calling out of work. Here's what to know about the pathogens circulating in the ...

Flu season in America is underway with a new variant called subclade K, recent Centers for Disease Control and Prevention ...

After last week's data showed a 55% increase in hospital patients with flu in England, the NHS warned of a "worst-case ...

The Colorado Department of Public Health and Environment has confirmed its first influenza-associated pediatric death of the ...

A Twin Cities metro area school shifted to e-learning after a flu outbreak impacted nearly a quarter of its students. A ...

Flu cases have fallen across Scotland, dropping by 20% in the week to 14 December, official health figures show.