A variant of influenza A, H3N2, is spreading across the U.S., with low vaccination rates contributing to infection rates.

A new form of the flu, which is highly contagious and aggressive, is sweeping the nation this season. A mutation of influenza A H3N2, called subclade K, has been detected as the culprit in rising ...

Subclade K has become the dominant form of flu and is slightly different from the virus targeted by this year’s flu vaccine.

Known as subclade K, a new, mutated flu strain that has dominated in Europe and Asia is now rapidly spreading across the US.

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

Last year’s flu season was the roughest in nearly a decade. “We generally don’t have two bad flu seasons back to back,” said ...

Louisiana ranks among the top states for flu cases nationwide, and health officials expect those numbers to remain high ...

A new influenza strain could make for a more troublesome winter flu season in Stanislaus County. Health agencies are saying ...

Viruses can change and alter their genetic make-up. When these changes occur, the virus may become more or less of a threat to the human host. Virologists are therefore interested in tracking the ...

A trapezius strain is a muscle or tendon injury that limits movement and strength in the arms. It occurs when the fibers are stretched beyond their typical limit. In severe cases, it can lead to a ...