Senior Airman Ladrena Tucker, 59th Medical Operations Squadron Internal Medicine medical technician, sanitizes her hands, Feb. 2, 2021, at Wilford Hall Ambulatory Surgical Center, Joint Base San Antonio-Lackland, Texas. The Center for Disease Control and Prevention guidelines recommend medics sanitize their hands, wear a mask, goggles and a new pair of gloves for every patient while administering the COVID-19 vaccine. (U.S. Air Force photo by Airman 1st Class Melody Bordeaux)