The U.S. flu season is starting slowly, and it’s not clear if it will be as bad as last winter’s. But some health experts are ...

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

A mutated strain of the flu is surging worldwide, sparking concerns about a severe flu season in the U.S. Here's what to ...

The United States may be heading into its second severe flu season in a row, driven by a mutated strain called subclade K ...

Last winter, for the first time since Covid-19 entered our world, influenza reclaimed its spot as the worst actor among the cast of viruses that sicken people during the cold and flu season. The ...

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 ...

The United States may be headed for a rough flu season, with a virus that causes more severe symptoms than the one last year ...

BOSTON — Doctors are raising alarms about a newly mutated strain of the flu that could drive cases higher this season. The ...

Starting in 2025, this year’s flu season is spreading early, and with vaccination rates low and a novel virus strain, health ...

Doctors and public health leaders, including at the U.S. Centers for Disease Control and Prevention, recommend that most people 6 months old and older get the 2025-26 flu vaccine. The flu shot’s ...

Health experts recommend an annual flu vaccination for everyone older than 6 months, especially as the holiday season nears.