Passengers walk through the ticket gate at a metro station in Guangzhou, south China's Guangdong Province, March 9, 2020. Metro system in Guangzhou has intensified epidemic protection measures to face the increasing passengers as work and production resume in an orderly way. (Xinhua/Lu Hanxin)
A staff member works at a remote infrared temperature checking point at a metro station in Guangzhou, south China's Guangdong Province, March 9, 2020. Metro system in Guangzhou has intensified epidemic protection measures to face the increasing passengers as work and production resume in an orderly way. (Xinhua/Lu Hanxin)
Passengers walk through a remote infrared temperature checking point at a metro station in Guangzhou, south China's Guangdong Province, March 9, 2020. Metro system in Guangzhou has intensified epidemic protection measures to face the increasing passengers as work and production resume in an orderly way. (Xinhua/Lu Hanxin)
Passengers walk through the ticket gate at a metro station in Guangzhou, south China's Guangdong Province, March 9, 2020. Metro system in Guangzhou has intensified epidemic protection measures to face the increasing passengers as work and production resume in an orderly way. (Xinhua/Lu Hanxin)
Passengers wait for a train at a metro station in Guangzhou, south China's Guangdong Province, March 9, 2020. Metro system in Guangzhou has intensified epidemic protection measures to face the increasing passengers as work and production resume in an orderly way. (Xinhua/Lu Hanxin)