U.S. Air Force Staff Sgt. Anna Murray, 48th Medical Group immunizations technician, opens the first box of COVID-19 vaccinations delivered to Royal Air Force Lakenheath, England, Dec. 27, 2020. Initial quantities of the vaccine are limited and will be distributed on a rolling delivery basis as more vaccines become available. (U.S. Air Force photo by Airman 1st Class Jessi Monte)