Combo photo shows a view of an empty campus road of No. 4 High School of Xiangyang in Xiangyang City, central China's Hubei Province, April 14, 2020 (left) and senior students walking on a campus road in the school on May 6, 2020. Students in their final year of 56 high and vocational schools returned to campus on Wednesday in Xiangyang City. Cleaning and preventive disinfection have been carried out in these schools before reopening to prevent the spread of the novel coronavirus. (Xinhua/Xie Jianfei)