Staff Sgt. Danielle Costa, 779th Aerospace Medicine Squadron public health technician, scans the hands of Patricia Pitt, J.P. Hoyer Child Development Center III care giver, in semi-darkness under a black light to reveal possible germs left after washing her hands recently. Sergeant Costa briefed four different groups of child care givers at the J.P. Hoyer CDC to heighten their awareness on thorough handwashing. (U.S. Air Force photo/ Bobby Jones)