Jan. 6, 2021 Air Force Surgeon General visits Joint Base Anacostia-Bolling, receives COVID-19 vaccine U.S. Air Force Staff Sgt. Kelvin Thomas, 316th Medical Squadron noncommissioned officer in charge of immunizations, administers the Moderna COVID-19 vaccination to U.S. Air Force Lt. General Dorothy A. Hogg, U.S. Air Force and U.S. Space Force Surgeon General, at Joint Base Anacostia-Bolling,