Subclade K, a variant of the influenza A strain H3N2, is being detected in the U.S. This is the same variant that experts say ...

A new type of seasonal flu virus is raising concerns among health officials as winter approaches. Here's what to know about subclade K.

There are reports of this strain of the flu causing more severe illness, and early data suggest that protection against the flu from previous infections or the vaccine is “suboptimal,” according to ...

Dr. Tara Narula breaks down a new strain of flu, subclade K, which is causing concern as many people get ready to travel ahead of the holidays.

A new influenza A strain subclade K is circulating due to H3N2 picking up 7 mutations this Summer. Will this lead to a worse ...

A new strain of the flu called subclade K could make for a particularly nasty flu season across the country, according to ...

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

Subclade K, a variant of flu type A H3N2, has caught medical professionals off-guard. It already has spread rapidly in ...

Scientists discovered that it carries around seven key mutations, which make it look different to the immune system.

A new flu strain, H3N2 subclade K, is spreading globally. Health experts warn it could cause a severe winter season. Current ...