People visit a photo exhibition in honor of medical workers in Nur-Sultan, Kazakhstan, Aug. 27, 2020. A photo exhibition in honor of medicals workers is held on a pedestrian bridge in Nur-Sultan, during which 100 portraits of medical workers are displayed. (Photo by Kalizhan Ospanov/Xinhua)

People visit a photo exhibition in honor of medical workers in Nur-Sultan, Kazakhstan, Aug. 27, 2020. A photo exhibition in honor of medicals workers is held on a pedestrian bridge in Nur-Sultan, during which 100 portraits of medical workers are displayed. (Photo by Kalizhan Ospanov/Xinhua)

Children view photos at a photo exhibition in honor of medical workers in Nur-Sultan, Kazakhstan, Aug. 27, 2020. A photo exhibition in honor of medicals workers is held on a pedestrian bridge in Nur-Sultan, during which 100 portraits of medical workers are displayed. (Photo by Kalizhan Ospanov/Xinhua)