U.S. Air Force Staff Sgt. Rileigh Schickel, 10th Expeditionary Aeromedical Evacuation Flight aeromedical evacuation technician, writes a message on a whiteboard during a training at Ramstein Air Base, Germany, Jan. 26, 2021. Exchanging written messages through the window of the Negatively Pressurized Conex is an important secondary method of communication. The NPC used in the training is permanently assigned to the 521st Air Mobility Operations Wing here and offers infectious disease transport capabilities to Europe and Africa. (U.S. Air Force photo by Airman 1st Class Daniel Sanchez)