Maj. (Dr.) Derek Smith, 59th Medical Wing Immunizations Clinic medical director, performs data quality management to ensure accuracy of patient records for the Pfizer COVID-19 vaccine, Dec. 18, 2020, in Wilford Hall Ambulatory Surgical Center, Joint Base San Antonio-Lackland, Texas. The Department of Defense aims to be able to reduce the burden of the COVID-19 disease in high-risk populations and simultaneously mitigate risk to military operations. (U.S. Air Force photo by Airman 1st Class Melody Bordeaux)