New kind of flu shot is on the way as the FDA approves Moderna’s mRNA-based vaccineFILE - The Food and Drug Administration seal is seen at the Hubert Humphrey Building Auditorium in Washington, April 22, 2025. (AP Photo/Jose Luis Magana, File)WASHINGTON (AP) — The Food and Drug Administration has approved a new kind of flu vaccine for older people, the first made with the same mRNA technology that was key to ending the COVID-19 pandemic, manufacturer Moderna said. The shot, named mFlusiva, is intended for adults age 50 or older. Flu vaccines must be updated annually to best match circulating strains of the virus. The FDA action comes after a highly unusual public dispute over mFlusiva earlier this year.