A staff member disinfects hallway at the No. 1 High School of Kuitun City in Kazak Autonomous Prefecture of Ili, northwest China's Xinjiang Uygur Autonomous Region, March 21, 2020. Students in primary schools, senior and junior high schools and vocational colleges in Xinjiang will return to school on March 23 after a series of precautions against the COVID-19, as the coronavirus spread has been basically curbed. (Xinhua/Sadat)
