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

While vaccines may not fully protect everyone, public health experts say they’re still proven to help prevent serious illness ...

Although this year’s flu vaccine doesn’t protect as well against the dominant subclade K strain, doctors still say that ...

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 ...

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

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

Two friends with opposing viewpoints talk about the strain the COVID-19 pandemic put on their relationship and how they can ...

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

There have been more than two dozen flu-related deaths in Massachusetts, and experts anticipate cases continuing to rise.

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 ...