Medical staff get on the bus in Wuhan, central China's Hubei Province, Feb. 11, 2020. After Wuhan suspended public transportation, the Wuhan Bus deployed buses to commute medical staff and people working at necessary sectors. (Xinhua/Wang Yuguo)

Bus drivers clean the bus in Wuhan, central China's Hubei Province, Feb. 11, 2020. After Wuhan suspended public transportation, the Wuhan Bus deployed buses to commute medical staff and people working at necessary sectors. (Xinhua/Wang Yuguo)

Medical staff cheer for each other while taking a bus in Wuhan, central China's Hubei Province, Feb. 11, 2020. After Wuhan suspended public transportation, the Wuhan Bus deployed buses to commute medical staff and people working at necessary sectors. (Xinhua/Wang Yuguo)

A bus driver sprays disinfectant in the bus in Wuhan, central China's Hubei Province, Feb. 11, 2020. After Wuhan suspended public transportation, the Wuhan Bus deployed buses to commute medical staff and people working at necessary sectors. (Xinhua/Wang Yuguo)