A mutated H3N2 influenza strain known as Subclade K is rapidly spreading across the US, driving an early and intense flu ...

It may feel like you are surrounded by sniffles and coughs, but flu season activity is still low in many parts of the U.S.

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 latest data on respiratory illness in the United States shows that shoppers and merry-makers are spreading more than just holiday cheer: They’re also passing around germs. In many cases, it’s a ...

The strain—identified in some regions as H3N2 subclade K—has gained traction internationally, prompting warnings from health leaders in Canada, Japan,the United Kingdom, and the United States. Early ...

New York City logged the first “very high” flu activity reading of the year, raising concerns about the season ahead.

In 2025, a newly mutated strain of the flu virus, H3N2 subclade K , has sparked global concern. The strain has obtained seven ...

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

According to the CDC, influenza activity is increasing nationwide as we move deeper into flu season.A new variant of ...

While coughs and colds are ordinarily rife during the colder months, health experts are warning of a particularly bad flu season, attributing the spike to a mutated H3N2 strain of the virus. The ...

Children who were vaccinated against Covid-19 last season had a “substantially lower risk” of emergency department and urgent care visits related to the virus, according to a report published Thursday ...