Check In Administrative personnel check in patients who want to receive a COVID-19 vaccine at the Wilford Hall Ambulatory Surgical Center, Joint Base San Antonio-Lackland, Texas, April 19, 2021. SHARE: Download: Full Size (7.61 MB) Tags: coronavirus, covid19vaccine Credit: Air Force Airman 1st Class Melody Bordeaux VIRIN: 210418-F-JG587-1034A.JPG Photo Gallery