An annual flu shot is administered to a service member at the 30th Medical Group, Sept. 25, 2020, at Vandenberg Air Force Base, Calif. The best way to prevent seasonal flu is to get vaccinated every year. Additionally, it’s imperative for installation members to receive their annual flu shot to keep their Individual Medical Records are up-to-date, ensuring base-wide readiness. (U.S. Space Force photo by Staff Sgt. Brittany E. N. Murphy)