Staff Sgt. Kaitlyn Sapp, 367th Training Support Squadron, receives a flu vaccination shot Dec. 17, 2020, at Hill Air Force Base, Utah, from Staff Sgt. June Cherone, 75th Medical Group. The CDC recommends seasonal influenza vaccine for all people 6 months of age and older. The best way to prevent seasonal flu is to get vaccinated every year. (U.S. Air Force photo by Cynthia Griggs)