A teacher disinfects the class room at a junior high school in Yecheng County of Kashgar, northwest China''s Xinjiang Uygur Autonomous Region, March 20, 2020. According to local education department, students in primary schools, senior and junior high schools and vocational colleges in Xinjiang will return to school on March 23, as the coronavirus spread has been curbed. (Xinhua/Ding Lei)