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A nurse supervises patients with the Covid-19 disease at Herlev Hospital's Department of Anesthesia, Operation and Intensive Care, in Copenhagen, Denmark, at the beginning of May 2020. - A closer date has been left out for the sake of patients' anonymity. (Photo by Ólafur Steinar Gestsson / Ritzau Scanpix / AFP) / Denmark OUT / RESTRICTED TO EDITORIAL USE IN CONNECTION WITH THE 2020 COVID-19 PANDEMIC (Photo by OLAFUR STEINAR GESTSSON/Ritzau Scanpix/AFP via Getty Images)