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 ...

Moderna’s mRNA flu vaccine gave more protection against illness than the standard flu shot in a phase 3 clinical trial, according to published results.

Sickness is surging across the United States following the holiday season, bringing thermometers and medicine to homes amid presents and Christmas dinner leftovers. New York state especially has been ...

After a sharp uptick in flu cases in mid-December 2025, flu activity across the U.S. and Canada remains high. Although cases are trending downward in Canada as of Jan. 9, 2026, the season has yet to ...

The efficacy of flu shots is not always the same and it’s not always optimal. Some years, they can reduce the risk of illness by as little as 20% to 30%. Messenger RNA technology, or mRNA, is widely ...