A medical worker takes a swab sample from a resident at a COVID-19 testing site in Xicheng District in Beijing, capital of China, Jan. 26, 2022. (Xinhua/Ren Chao)
A staff member registers information of a resident at a COVID-19 testing site in Xicheng District in Beijing, capital of China, Jan. 26, 2022. (Xinhua/Ren Chao)
A staff member gestures to maintain order at a COVID-19 testing site in Xicheng District in Beijing, capital of China, Jan. 26, 2022. (Xinhua/Ren Chao)
Photo taken on Jan. 26, 2022 shows a COVID-19 testing site in Xicheng District in Beijing, capital of China. (Xinhua/Ren Chao)