A security guard wearing protective equipment watches over patients queuing to be tested, amid the coronavirus disease (COVID-19) outbreak, at the Cleveland Clinic hospital in Abu Dhabi, United Arab Emirates, April 20, 2020. REUTERS/Christopher PikeA security guard wearing protective equipment watches over patients queuing to be tested, amid the coronavirus disease (COVID-19) outbreak, at the Cleveland Clinic hospital in Abu Dhabi, United Arab Emirates, April 20, 2020. REUTERS/Christopher Pike