Lt. Col. Kristen Carter, 436th Medical Support Squadron commander, and Master Sgt. Jessica Nienhueser, 436th MDSS superintendent, display their signs stating why they volunteered for the COVID-19 vaccine on Jan. 21, 2021, at Dover Air Force Base, Delaware. Carter and Nienhueser were among the first Team Dover front-line workers who voluntarily received the vaccine in accordance with Department of Defense guidance. The vaccine was granted emergency use authorization by the U.S. Food and Drug Administration for use in prevention of COVID-19. (U.S. Air Force photo by Roland Balik)

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Photo by: GS-09 / Roland Balik |  VIRIN: 210121-F-BO262-1007.JPG