Vaccine Prep Navy Seaman Milan Torres, a hospitalman, prepares a dose of the COVID-19 vaccine to be administered to a patient at Walter Reed National Military Medical Center in Bethesda, Md., Dec. 14, 2020. SHARE: Download: Full Size (0.23 MB) Credit: Lisa Ferdinando, DOD VIRIN: 201214-D-BN624-0823.JPG Photo Gallery