After a sharp uptick in flu cases in mid-December 2025, flu activity across the U.S. and Canada remains high.

Flu cases and hospitalizations are surging, already breaking last season's records. Here's where activity is highest, what ...

A new flu variant fueling a fast-paced rise in cases across the state has brought with it some symptoms unlike those many have come to associate with the virus.

A new flu strain has been detected, with the variant dubbed influenza A subclade K. How severe is the strain and does the ...

Much of the country is facing record flu cases thanks to a new strain of the virus. And the "subclade K" variant is likely already here in Spokane. The new strain formed last year as influenza A's ...

A new flu variant, subclade K, is driving an uptick in cases across the U.S. and prolonging influenza seasons in other parts of the world.

Flu cases are rising rapidly across the US due to a new strain called subclade K, a mutated form of the H3N2 influenza A virus. The variant spreads quickly and may increase the risk of complications ...

Flu is rising rapidly across the U.S., driven by a new variant of the virus — and cases are expected to keep growing with holiday travel. That variant, known as “subclade K,” led to early outbreaks in ...

UF Health epidemiologist Dr. Nicole Iovine says a highly mutated flu strain is driving increased cases in Alachua County and ...