Emilia Williams, 60th Force Support Squadron child and youth program technician, wipes down a shelf May 1, 2020, in a pre-toddler room inside Child Development Center 3 at Travis Air Force Base, California. Since the coronavirus pandemic hit the United States, the CDC staff at Travis AFB implemented more frequent cleaning of surfaces to prevent the spread of COVID-19. (U.S. Air Force photo by Tech. Sgt. James Hodgman)