U.S. Air Force Staff Sgt. Raul Loyo, a laboratory technician with the 509th Medical Group, checks a bacitracin disk at Whiteman Air Force Base, Mo., Feb. 20, 2013. The disks were used to verify strep throat. (U.S. Air Force photo by Airman 1st Class Keenan Berry/Released)
Airman 1st Class Keenan Berry
Taken on 20 February 2013
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