Maj. Gen. Christopher Azzano, Air Force Test Center commander, thanks Airman 1st Class Kendall Timko, 412th Medical Group medical technician after receiving the COVID-19 vaccine, Jan. 22, 2021 at the Airman and Family Readiness Center on Edwards Air Force Base, Calif. After vaccination, Defense Department personnel will continue to wear appropriate masks, practice physical distancing, wash hands and follow restrictions of movement in order to protect the safety of others as a large portion of the population will need to be vaccinated before COVID-19 risks diminish. (U.S. Air Force photo by Tech. Sgt. Robert Cloys)