Airmen from Joint Base Charleston and the Air Force Operational Test and Evaluation Center build, test and evaluate the Transport Isolation System (TIS) at JB Charleston, Dec. 13, 2014. The TIS is a self-contained module system that can be used with either two or three sections, depending on aircraft space. It will be used to safely transport patients with an infectious disease. (U.S. Air Force photo by Chief Master Sgt. Bryan DuBois )