Learn how Subclade K, a variant of the influenza A virus, is affecting immune responses and contributing to this year’s ...

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 ...

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

Two and a half years after Sanofi unveiled to investors a revamped strategy to create an mRNA seasonal flu vaccine, Fierce Biotech has learned that the French pharma has put this pipeline on ice.

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

Nasal vaccines offer convenience and another option for those wary of needles, but traditional vaccines are best for young ...

At least 100 people have died from the flu this season in Illinois, with 77 of those deaths occurring this month alone, ...

According to the IDPH, flu outbreaks are specifically growing in West Chicago, Bellwood, Rockford, Metro East, Peoria and Champaign.