6286704 15.07.2020 In this handout photo released by the Russian Defence Ministry, a medic collects blood for antibodies to the coronavirus disease from a participant in a coronavirus vaccine trial during tests at the Burdenko Main Military Clinical Hospital in Moscow, Russia. Editorial use only, no archive, no commercial use. Ministry press service оброны Russian Federation

June 24, 2020, Colombia, Colombia: BOGOTA, COLOMBIA - JUNE 23: 13-year-old Steven Tao Lozano suffering from Duchenne muscular dystrophy (DMD) which causes progressive muscle degeneration and weakness, poses for a photo in Bogota, Colombia on June 23, 2020. Steven Tao Lozano bestows his paintings to healthcare personnels fight against the coronavirus (COVID-19) Steven Tao Lozano has lost all the mobility in his body in recent years, concentrated in his right hand to draw and paint in his house in the southern Bogota, where compulsory preventive quarantine still prevails. Steven dedicates hours to his creations; a hobby that has become his best therapy and especially in times of the epidemic. (Credit Image: © PPI via ZUMA Wire)

6273379 25.06.2020 A medical worker helps a colleague to put on a personal protective equipment (PPE) at the Clinical Infectious Hospital named after I.Zhekenova where patients suffering from the coronavirus disease are treated, in Almaty, Kazakhstan. Timur Batyrshin / Sputnik

6273398 25.06.2020 A medical worker wearing a personal protective equipment (PPE) walks at the Clinical Infectious Hospital named after I.Zhekenova where patients suffering from the coronavirus disease are treated, in Almaty, Kazakhstan. Timur Batyrshin / Sputnik

Primarul orasului Deva, Florin Oancea, si administratorul public Adrian David Nicolae, infectati cu coronavirus, sunt adusi la Spitalul Clinic de Boli Infectioase si Pneumoftiziologie Dr. Victor Babes din Timisoara, sambata, 14 martie 2020. DANI AMARIEI / MEDIAFAX FOTO