A mutated flu virus is spreading across the U.S., with 86.8% of recent cases identified as H3N2 subclade K. The flu shot is ...

The strain—identified in some regions as H3N2 subclade K—has gained traction internationally, prompting warnings from health ...

H3N2, a potent influenza A subtype, is driving significant flu outbreaks globally, causing substantial hospitalizations, ...

The CDC reports the new mutated strain has made its way to the U.S. after spreading quickly through countries such as the UK, ...

Experts are warning of a new flu outbreak as we head into winter. Why it matters: The new strain, a variant of H3N2, emerged ...

As the winter of 2025 approaches, a mutated strain of influenza A H3N2, known as subclade K, is sweeping across the United States and much of the Northern hemisphere. Its rapid spread and apparent ...

Flu cases have soared (hospital admissions are up 50% vs this time last year) and reports say there's a new H3N2 strain. Here ...

As the country of China experiences a debilitating outbreak of the H3N2 virus, many are wondering if this will balloon to a worldwide issue.

Flu season is underway throughout the U.S. and doctors say now is the time to consider getting your flu shot if you haven't ...

The mutated strain, known as subclade K, is causing a surge in cases in the United Kingdom, Canada, and Japan. Here's what to know.

H3N2 flu cases are tripling in some countries as a new version with seven mutations spreads worldwide. US data remains ...

Seasonal flu activity is up across the United States, according to data from the Centers for Disease Control and ...