Add Yahoo as a preferred source to see more of our stories on Google. Defense Secretary Pete Hegseth is focused on a new enemy as the war with Iran rages on: the flu shot. In a video posted Tuesday, ...

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.

Getting a jab every year to protect against the flu is no longer a requirement for active-duty personnel, reservists and Defense Department civilians as part of a new policy announced by the Pentagon.

Medical professionals are encouraging Americans to take extra precautions to avoid a new flu strain spreading across the U.S. H3N2, called subclade K, is being tied to a growing number of cases ...

U.S. flu cases are surging partially because of a new strain named "subclade K," that is not well covered by this year’s flu vaccine. Doctors still recommend getting the flu vaccine as it can reduce ...

It's winter and with the holidays near, the 2025-2026 flu season has hit the U.S. with flu cases on the rise in New Jersey, with doctors urging those who haven't gotten the flu shot to do so now.