Inside nucleic acid testing site in Haidian District of Beijing(1/6)

A medical worker collects a throat swab from a citizen at a nucleic acid testing site in Haidian District of Beijing, capital of China, June 18, 2020. (Xinhua/Ren Chao)

Medical workers collect a throat swab from a citizen at a nucleic acid testing site in Haidian District of Beijing, capital of China, June 18, 2020. (Xinhua/Ren Chao)

Medical workers collect a throat swab from a citizen at a testing site in Haidian District of Beijing, capital of China, June 18, 2020. (Xinhua/Ren Chao)

Medical workers collect a throat swab from a citizen at a nucleic acid testing site in Haidian District of Beijing, capital of China, June 18, 2020. (Xinhua/Ren Chao)

A medical worker helps a colleague adjust goggle at a nucleic acid testing site in Haidian District of Beijing, capital of China, June 18, 2020. (Xinhua/Ren Chao)

A medical worker verifies information of a person at a nucleic acid testing site in Haidian District of Beijing, capital of China, June 18, 2020. (Xinhua/Ren Chao)