201116-A-HZ730-1019
Crystal Tyler, pharmacy technician, prepares an injection for an Operation Warp Speed patient volunteer at Brooke Army Medical Center, Fort Sam Houston, Texas, November 16, 2020. BAMC and Wilford Hall Ambulatory Surgical Center are participating in the Phase III trial to evaluate the vaccine under development by AstraZeneca as part of a national initiative to accelerate the development, production and distribution of COVID-19 vaccines, therapeutics and diagnostics. (U.S. Army photo by Jason W. Edwards)