Airmen 1st Class Natalie Wilson, a medical technician from the 28th Healthcare Operations Squadron, administers a second COVID-19 vaccine to Airman 1st Class Tresten Mashtare, a 28th Operations Support Squadron air traffic controller, at the Installation Deployment Readiness Center on Ellsworth Air Force Base, S.D., Feb. 11, 2021. Beneficiaries and base personnel who have not received the Pfizer COVID-19 vaccines previously will have the opportunity to receive their initial (or second for those who have already received their first through the 28th Medical Group) dose March 19, at a point of distribution (POD) site in the base IDRC. (U.S. Air Force photo by Staff Sgt. Hannah Malone)