People returning from Hubei arrive at the Beijing West Railway Station in Beijing, capital of China, March 25, 2020. The first batch of over 800 people stranded in virus-hit Hubei Province has arrived in Beijing Wednesday afternoon after Hubei lifted outbound travel restrictions in all areas except the capital city Wuhan starting from Wednesday. (Xinhua/Zhang Chenlin)

People returning from Hubei arrive at a gathering point in Chaoyang District in Beijing, capital of China, March 25, 2020. The first batch of over 800 people stranded in virus-hit Hubei Province has arrived in Beijing Wednesday afternoon after Hubei lifted outbound travel restrictions in all areas except the capital city Wuhan starting from Wednesday. (Xinhua/Ju Huanzong)

People returning from Hubei arrive at a gathering point in Haidian District in Beijing, capital of China, March 25, 2020. The first batch of over 800 people stranded in virus-hit Hubei Province has arrived in Beijing Wednesday afternoon after Hubei lifted outbound travel restrictions in all areas except the capital city Wuhan starting from Wednesday. (Xinhua/Ren Chao)

Staff members check the information of people returning from Hubei at a gathering point in Haidian District in Beijing, capital of China, March 25, 2020. The first batch of over 800 people stranded in virus-hit Hubei Province has arrived in Beijing Wednesday afternoon after Hubei lifted outbound travel restrictions in all areas except the capital city Wuhan starting from Wednesday. (Xinhua/Ren Chao)

People returning from Hubei get off the bus at a gathering point in Chaoyang District in Beijing, capital of China, March 25, 2020. The first batch of over 800 people stranded in virus-hit Hubei Province has arrived in Beijing Wednesday afternoon after Hubei lifted outbound travel restrictions in all areas except the capital city Wuhan starting from Wednesday. (Xinhua/Ju Huanzong)

A woman returning from Hubei (L) gets her body temperature checked at a community in Beijing, capital of China, March 25, 2020. The first batch of over 800 people stranded in virus-hit Hubei Province has arrived in Beijing Wednesday afternoon after Hubei lifted outbound travel restrictions in all areas except the capital city Wuhan starting from Wednesday. (Xinhua/Ren Chao)

A staff member (2nd L) leads people returning from Hubei to enter a gathering point in Dongcheng District in Beijing, capital of China, March 25, 2020. The first batch of over 800 people stranded in virus-hit Hubei Province has arrived in Beijing Wednesday afternoon after Hubei lifted outbound travel restrictions in all areas except the capital city Wuhan starting from Wednesday. (Xinhua/Chen Zhonghao)

A staff member checks the information of people returning from Hubei at a gathering point in Chaoyang District in Beijing, capital of China, March 25, 2020. The first batch of over 800 people stranded in virus-hit Hubei Province has arrived in Beijing Wednesday afternoon after Hubei lifted outbound travel restrictions in all areas except the capital city Wuhan starting from Wednesday. (Xinhua/Ju Huanzong)

People returning from Hubei arrive at a gathering point in Haidian District in Beijing, capital of China, March 25, 2020. The first batch of over 800 people stranded in virus-hit Hubei Province has arrived in Beijing Wednesday afternoon after Hubei lifted outbound travel restrictions in all areas except the capital city Wuhan starting from Wednesday. (Xinhua/Ren Chao)

Staff members of all districts of Beijing pick up people returning from Hubei at the Beijing West Railway Station in Beijing, capital of China, March 25, 2020. The first batch of over 800 people stranded in virus-hit Hubei Province has arrived in Beijing Wednesday afternoon after Hubei lifted outbound travel restrictions in all areas except the capital city Wuhan starting from Wednesday. (Xinhua/Zhang Chenlin)

A train carrying people returning from Hubei arrives at the Beijing West Railway Station in Beijing, capital of China, March 25, 2020. The first batch of over 800 people stranded in virus-hit Hubei Province has arrived in Beijing Wednesday afternoon after Hubei lifted outbound travel restrictions in all areas except the capital city Wuhan starting from Wednesday. (Xinhua/Zhang Chenlin)

Staff members wait for the people returning from Hubei at a gathering point in Haidian District in Beijing, capital of China, March 25, 2020. The first batch of over 800 people stranded in virus-hit Hubei Province has arrived in Beijing Wednesday afternoon after Hubei lifted outbound travel restrictions in all areas except the capital city Wuhan starting from Wednesday. (Xinhua/Ren Chao)

Staff members wait for the people returning from Hubei at a gathering point in Chaoyang District in Beijing, capital of China, March 25, 2020. The first batch of over 800 people stranded in virus-hit Hubei Province has arrived in Beijing Wednesday afternoon after Hubei lifted outbound travel restrictions in all areas except the capital city Wuhan starting from Wednesday. (Xinhua/Ju Huanzong)