First time
U.S. Air Force Airman 1st Class Iyannika Johnson, 23rd Aerospace Medicine Squadron public health technician, gets her blood drawn at Moody Air Force Base, Ga., Oct. 26, 2011. Johnson said it was her first time giving blood but wouldn’t be her last. She also said she gave blood because she wants to help save lives. She has an O positive blood type, which is in high demand. (U.S. Air Force photo by Airman 1st Class Paul Francis/Released)