A medical worker collects a swab sample from a child at a COVID-19 testing site in Daxing District of Beijing, capital of China, Jan. 20, 2021. (Xinhua/Ju Huanzong)
A medical worker collects a swab sample from a resident at a COVID-19 testing site in Daxing District of Beijing, capital of China, Jan. 20, 2021. (Xinhua/Ju Huanzong)
A medical worker registers information for a resident at a COVID-19 testing site in Daxing District of Beijing, capital of China, Jan. 20, 2021. (Xinhua/Ju Huanzong)
A medical worker disinfects public area at a COVID-19 testing site in Daxing District of Beijing, capital of China, Jan. 20, 2021. (Xinhua/Ju Huanzong)
Medical workers collect swab samples from residents at a COVID-19 testing site in Daxing District of Beijing, capital of China, Jan. 20, 2021. (Xinhua/Ju Huanzong)
A medical worker collects a swab sample from a child at a COVID-19 testing site in Daxing District of Beijing, capital of China, Jan. 20, 2021. (Xinhua/Ju Huanzong)
A medical worker collects a swab sample from a resident at a COVID-19 testing site in Daxing District of Beijing, capital of China, Jan. 20, 2021. (Xinhua/Ju Huanzong)
