Photo taken on March 16, 2020 shows a view of a train of the Beijing MTR Line 4 in Beijing, capital of China. The Beijing MTR (Mass Transit Railway) has taken measures to control the passenger flow during the morning peak at some stations along the Line 4, the Daxing Line and the Line 14 to contain the novel coronavirus epidemic. Passengers must have the body temperature measured and register their personal information before entering the subway station. (Photo by Chen Zhonghao/Xinhua)
