Medical staff combats COVID-19
U.S. Air Force Airman 1st Class Mary Williams, 355th Aircraft Maintenance Squadron crew chief, screens a customer at Davis-Monthan Air Force Base, Arizona, March 26, 2020. Airmen were posted in front of medical facility entrances to perform pre-screenings before letting others enter. (U.S. Air Force photo by Staff Sgt. Sergio A. Gamboa)