Passengers get off the high-speed train G1005 from Wuhan at Shenzhen North Railway Station in Shenzhen, south China's Guangdong Province, April 8, 2020. The high-speed rail service between Shenzhen and Wuhan restored operation from Wednesday, with four trains from Wuhan scheduled to arrive at Shenzhen North Railway Station the same day. Wuhan, the megacity in central China started lifting outbound travel restrictions from Wednesday after almost 11 weeks of lockdown to stem the spread of COVID-19. (Xinhua/Liang Xu)

Passengers get off the high-speed train G1005 from Wuhan at Shenzhen North Railway Station in Shenzhen, south China's Guangdong Province, April 8, 2020. The high-speed rail service between Shenzhen and Wuhan restored operation from Wednesday, with four trains from Wuhan scheduled to arrive at Shenzhen North Railway Station the same day. Wuhan, the megacity in central China started lifting outbound travel restrictions from Wednesday after almost 11 weeks of lockdown to stem the spread of COVID-19. (Xinhua/Liang Xu)

The high-speed train G77 from Wuhan pulls in at the Shenzhen North Railway Station in Shenzhen, south China's Guangdong Province, April 8, 2020. The high-speed rail service between Shenzhen and Wuhan restored operation from Wednesday, with four trains from Wuhan scheduled to arrive at Shenzhen North Railway Station the same day. Wuhan, the megacity in central China started lifting outbound travel restrictions from Wednesday after almost 11 weeks of lockdown to stem the spread of COVID-19. (Xinhua/Liang Xu)

The high-speed train G1005 from Wuhan pulls in at the Shenzhen North Railway Station in Shenzhen, south China's Guangdong Province, April 8, 2020. The high-speed rail service between Shenzhen and Wuhan restored operation from Wednesday, with four trains from Wuhan scheduled to arrive at Shenzhen North Railway Station the same day. Wuhan, the megacity in central China started lifting outbound travel restrictions from Wednesday after almost 11 weeks of lockdown to stem the spread of COVID-19. (Xinhua/Liang Xu)

Passengers get off the high-speed train G77 from Wuhan at Shenzhen North Railway Station in Shenzhen, south China's Guangdong Province, April 8, 2020. The high-speed rail service between Shenzhen and Wuhan restored operation from Wednesday, with four trains from Wuhan scheduled to arrive at Shenzhen North Railway Station the same day. Wuhan, the megacity in central China started lifting outbound travel restrictions from Wednesday after almost 11 weeks of lockdown to stem the spread of COVID-19. (Xinhua/Liang Xu)