NIS, SERBIA - APRIL 07: A medical personnel works at a Covid-19 clinic, which was the second one in the country after Belgrade, in Nis, Serbia on April 07, 2020. (Photo by Sasa Djordjevic/Anadolu Agency via Getty Images)
NIS, SERBIA - APRIL 07: A medical personnel works at a Covid-19 clinic, which was the second one in the country after Belgrade, in Nis, Serbia on April 07, 2020. (Photo by Sasa Djordjevic/Anadolu Agency via Getty Images)