Have you been sick since the new year started? You're not alone; here's what to know about new H3N2 flu strain and its ...

Americans are being urged to be extra vigilant this winter, as a suite of influenza A mutations has created a dominant virus ...

The CDC estimated there have been at least 7.5 million illnesses in the U.S., 81,000 hospitalizations and 3,100 deaths from ...

Influenza is on the rise. Flu activity was "high" or "very high" in 32 states and jurisdictions, as of Dec. 30, according to ...

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

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

Flu season is ramping up in the U.S., marked by a new strain that could make vaccines less effective. Covid cases remain down.

The “super flu” behind outbreaks in the US and UK is a new variant of influenza A H3N2, subclade K. Existing vaccines appear ...

The new variant of Influenza A, or H3N2, has been given the nickname 'super flu.' The fast-spreading virus has caused ...

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 ...