Emergency Medical Technician (EMT), Yvonne Estrada walks back to her ambulance parked in front of LAC+USC Medical Center, April 20, 2020, in Los Angeles, California. - Estrada works everyday on the front line during the Covid 19 crisis, transporting patients to the Hospital. (Photo by VALERIE MACON / AFP) (Photo by VALERIE MACON/AFP via Getty Images)