U.S. Air Force Col. Melissa J. Dooley, 35th Medical Group commander, receives a dose of the COVID-19 vaccine at Misawa Air Base, Japan, Dec. 28, 2020. Full-scale, unrestricted vaccine availability to Department of Defense personnel, similar to the annual influenza vaccine program, is predicted to be accomplished before or by mid-2021. (U.S. Air Force photo by Staff Sgt. Grace Nichols)