Staff Sgt. Megan Montagnino, 455th Expeditionary Medical Group non-commissioned officer in charge of microbiology and the blood bank, drops antibodies into a patient's red blood cells, July 08, 2016, Bagram Airfield, Afghanistan. Montagnino mixed antibodies with a sample of a patient’s blood to verify the blood type. (U.S. Air Force photo by Senior Airman Justyn M. Freeman)