Aerial photo taken on March 26, 2020 shows staff on duty checking health QR code of drivers and passengers at an expressway toll-gate in Wuhan, central China's Hubei Province. Traffic flow at highway exits increased due to a growing number of people returned as Wuhan speeds up resumption of work and production. There were health staff, community workers and police in each lane at toll-gate checkpoints, scanning health codes and taking body temperatures of the returning workers, disinfecting their vehicles and making registrations. (Xinhua/Xiao Yijiu)
