A late-emerging influenza A mutation known as subclade K weakened protection, but doctors say vaccination still reduces ...

Americans are being urged to be extra vigilant this winter, as a suite of influenza A mutations has created a dominant virus ...

Have you been sick since the new year started? You're not alone; here's what to know about new H3N2 flu strain and its ...

The CDC says Texas flu is at "very high" levels, as the flu vaccine has been less effective against H3N2 subclade K.

Two friends with opposing viewpoints talk about the strain the COVID-19 pandemic put on their relationship and how they can ...

Subclade K has become the dominant form of flu and is slightly different from the virus targeted by this year’s flu vaccine.

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

Flu-like illness is high across the Mid-South as a severe strain drives increased hospitalizations and emergency room visits ...

There have been more than two dozen flu-related deaths in Massachusetts, and experts anticipate cases continuing to rise.

Health officials warn the H3N2 Clade K variant is spreading rapidly because most residents lack immunity, with ...

WELL, THIS BRUTAL STRAIN OF THE FLU VIRUS HAS CLAIMED ANOTHER LIFE. A 77 YEAR OLD ROSEVILLE MAN DIED YESTERDAY. HIS FAMILY ...