A new strain called H3N2 subclade K has emerged, raising concerns that the body may not be able to fight it off as well.

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

The CDC estimates that there have been at least 4.6 million illnesses, 49,000 hospitalizations, and 1,900 deaths from flu ...

The number of flu patients in hospital in England has risen by 18%, following a 55% increase the week before. Other UK-wide ...

Flu season arrives with the holidays, as parties and travel kick into high gear and colder weather sets in across many states ...

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

Scientists who track the multitude of flu viruses around the world noticed seven fresh mutations appear in a strain of ...

Last year’s flu season was the roughest in nearly a decade. “We generally don’t have two bad flu seasons back to back,” said ...

Scientists have warned H5N1 bird flu could make a dangerous leap to humans, triggering a global health crisis.

After starting the year with its first known bird flu death, the US expanded its efforts to contain the virus, which enabled ...

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

The report states that during the next two weeks - which covers Christmas - hospital admissions with flu "are forecasted to ...