Master Sgt. Jonathan Cagle, 99th Medical Support Squadron NCO in charge of medical maintenance, quality checks Nasopharyngeal swabs at Mike O'Callaghan Military Medical Center on Nellis Air Force Base, Nevada, May 7, 2020. The nasal swabs underwent a rigorous quality check procedure ensuring they were properly sterilized, standardized and within hospital testing regulations. (U.S. Air Force photo by Airman 1st Class Dwane R. Young)