COVID Booster Army Command Sgt. Maj. Michael Gragg, senior enlisted leader of the Defense Health Agency, prepares to receive his COVID-19 vaccine booster at the Belvoir Hospital Immunization Clinic in Fort Belvoir, Va., Sept.14, 2022. SHARE: Download: Full Size (1.49 MB) Tags: Army, covid19vaccine Credit: Reese Brown, Fort Belvoir Community Hospital VIRIN: 220914-D-TQ271-004.JPG Photo Gallery