Every year, flu vaccines are updated to match the flu viruses expected to circulate. For 2026, the vaccine focuses on several influenza strains that research predicts will be most prevalent. This ...

As flu cases are surging across the United States, here's what to know about whether or not you can still get the vaccine.

Flu is making people miserable from coast to coast, thanks in large part to a new strain called subclade K. That’s why infectious disease experts are telling people to run, not walk, to get this ...

The United States is facing one of its most severe flu seasons in decades, data show. Infections and hospitalizations are surging, driven by a new mutated influenza A variant, H3N2 "subclade K." ...

The U.S. Food and Drug Administration (FDA) recently informed Moderna that it would not review the company’s application for approval of its new flu vaccine, which is its first using mRNA technology ...