A staff member ventilates the air of a bus at a bus station in Beijing, capital of China, Feb. 3, 2020. Monday marks the first working day after the Spring Festival holidays for Beijing. Beijing Public Transport Corporation has taken measures such as cleaning and disinfecting buses, ventilating the air, measuring the temperatures of staff members and ensuring staffs working with face masks to prevent the spread of novel coronavirus. (Xinhua/Ren Chao)