The predicted surge of influenza cases, driven by the new “subclade K” mutation, is hitting Wisconsin emergency rooms.

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

A mutated strain of influenza A, H3N2 subclade K, is surging worldwide, sparking concern about a severe flu season in the ...

The California Department of Public Health on Tuesday confirmed that a mutated strain of influenza is spreading across the state and has led to a rate of hospitalization higher than in previous flu ...

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

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

The latest federal data shows Florida is now in the top tier of “very high” flu activity. Here's the four reasons why.

A new influenza A H3N2 mutation called subclade K is causing an alarming rise in flu cases and hospitalizations around the country. Some reports indicate that subclade K brings about a more severe ...

After weeks of delay, Florida's flu numbers are out—and up. Escambia County is among those experiencing a surge.

This year's flu season is shaping up to be particularly brutal. Here's what to know this week, including cases taking a ...

In West Michigan, a surge in flu cases strains hospitals, exacerbated by low vaccination rates and a new influenza mutation.