U.S. Air Force medical technicians use protective gears such as gloves when taking the temperatures of U.S. Service members at the Langley Transit Center before their Thanksgiving celebration at Joint Base Langley-Eustis, Va., during their controlled monitoring period, Nov. 27, 2014. The members recently returned from Liberia supporting Operation United Assistance, 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 West Africa. (U.S. Air Force photo by Staff Sgt. Gustavo Gonzalez/Released)