Deborah Malac, right, the U.S. ambassador to Liberia,

Deborah Malac, right, the U.S. ambassador to Liberia, watches as Ambassador Joseph N. Boakai, vice president of the Republic of Liberia, prepares to cut the ribbon to the opening of the Tubmanburg Ebola treatment unit in Tubmanburg, Liberia, Nov. 10, 2014. This is the first ETU built by the armed forces of Liberia. 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 Staff Sgt. Terrance D. Rhodes, Joint Forces Command – United Assistance Public Affairs/RELEASED)