Staff Sgt. Esteban Olvo, 59th Medical Wing enlisted training manager, screens patients for COVID-19 symptoms and explains how to fill out a COVID-19 Vaccine Screening and Immunization Documentation form, Dec. 18, 2020, in Wilford Hall Ambulatory Surgical Center, Joint Base San Antonio-Lackland, Texas. The U.S. Food and Drug Administration authorized the emergency use of the vaccine after careful and rigorous testing and trials for safety and effectiveness. (U.S. Air Force photo by Airman 1st Class Melody Bordeaux)
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