This year’s flu shot may be more effective than researchers thought - even as cases across the US are rising - This is America’s worst flu season in more than two decades with more than 15 million ...

Medical experts debunk flu shot myths: vaccines use inactive virus that cannot cause illness. Discover what side effects actually mean for your immunity.

A fast-spreading new flu strain is gaining a reputation as a monstrous “super flu.” The mutation of influenza A(H3N2) called subclade K is driving up infections across the country, including in New ...

As flu season approaches, many people wonder whether getting vaccinated twice in the same year might offer extra protection. With immunity known to fade and flu viruses changing fast, the question ...

Patients were 28% more likely to get a flu shot when they got a text message reminder and their primary care provider already ...

Learn more about seasonal flu, including where to get a flu vaccine and how to treat seasonal flu.

The U.S. health secretary told USA Today that he believed the flu jab was a “potential culprit that I cannot rule out” for ...

Flu cases and hospitalizations are surging, already breaking last season's records. Here's where activity is highest, what ...