Deborah Malac, left, the U.S. ambassador to Liberia, passes off the key of the Barkedu Health Center to Dr. Joseph Bolongei, county health officer of Lofa, Barkedu, Liberia, Jan. 22, 2015. The Barkedu Health Center has just opened, providing health care to Liberians in and around the city. United Assistance is a Department of Defense operation to provide command and control, logistics, training and engineering support to U.S. Agency for International Development-led efforts to contain the Ebola virus outbreak in West African Nations. (U.S. Army Photo by Specialist Rashene Mincy, 55th Signal Company (Combat Camera/Released)