The Influenza A H3N2 virus subclade K represents a change in the basic structure of the influenza virus.

Subclade K (previously known as J.2.4.1) is gaining attention because it appears to be spreading much earlier in the flu ...

A new version of the flu virus is now driving most infections this season, and cases continue to rise across the United States. The strain, known as H3N2 subclade K, has quickly become the dominant ...

Flu is surging across the U.S., sending thousands more people to the hospital and hitting young children especially hard, as doctors warn the season still has a long way to go. Flu activity is at ...

The Centers for Disease Control and Prevention has classified Ohio in the "very high" flu activity level since mid-December. Influenza A remains the dominant strain, with new H3N2 variants ...

The “super flu” behind outbreaks in the US and UK is a new variant of influenza A H3N2, subclade K. Here’s what you need to know. Against this backdrop, some media outlets have begun using the term ...

A new version of the flu virus is now driving most infections this season, and cases continue to rise across the United States. The strain, known as H3N2 subclade K, has quickly become the dominant ...

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