
A staff member operates a robot to spray disinfectant on a street in Wuhan, central China's Hubei Province, April 12, 2020. Robots are put into use to improve the efficiency of sterilization. (Xinhua/Wang Yuguo)

A staff member operates a robot to spray disinfectant on a street in Wuhan, central China's Hubei Province, April 12, 2020. Robots are put into use to improve the efficiency of sterilization. (Xinhua/Wang Yuguo)