From left, Petty Officer 3rd Class Denzel Eleby, a Key West, Fla., native, Petty Officer 3rd Class Joanna Hambleton, Doyelstown, Pa., both instructors, hands Maj. Retaunda Riley, an Ashmund, Georgia, native, the senior brigade physician assistance with the 36th Engineer Brigade, her equipment for the weekly class offered by the Department of Defense Ebola Treatment Training Team to teach and prevent the spread of the Ebola virus, in support of Operation United Assistance at the National Police Training Academy, Monrovia, Liberia, Dec. 2, 2014. Operation United Assistance is a Department of Defense operation in Liberia to provide logistics, training and engineering support to U.S. Agency for International Development-led efforts to contain the Ebola virus outbreak in western Africa. (U.S. Army photo by Sgt. Ange Desinor, 13th Public Affairs Detachment /RELEASED)