A medical worker takes a swab sample from a resident for nucleic acid testing at a sampling site in Yinchuan, northwest China's Ningxia Hui Autonomous Region, Oct. 27, 2021. Yinchuan launched a second round of all-inclusive nucleic acid testing on Wednesday since new confirmed COVID-19 cases were reported. (Xinhua/Feng Kaihua)
Aerial photo taken on Oct. 27, 2021 shows residents waiting in line for nucleic acid testing at a sampling site in Yinchuan, northwest China's Ningxia Hui Autonomous Region. Yinchuan launched a second round of all-inclusive nucleic acid testing on Wednesday since new confirmed COVID-19 cases were reported. (Xinhua/Feng Kaihua)
A medical worker takes a swab sample from a resident for nucleic acid testing at a sampling site in Yinchuan, northwest China's Ningxia Hui Autonomous Region, Oct. 27, 2021. Yinchuan launched a second round of all-inclusive nucleic acid testing on Wednesday since new confirmed COVID-19 cases were reported. (Xinhua/Feng Kaihua)
A medical worker takes a swab sample from a resident for nucleic acid testing at a sampling site in Yinchuan, northwest China's Ningxia Hui Autonomous Region, Oct. 27, 2021. Yinchuan launched a second round of all-inclusive nucleic acid testing on Wednesday since new confirmed COVID-19 cases were reported. (Xinhua/Feng Kaihua)
Aerial photo taken on Oct. 27, 2021 shows residents waiting in line for nucleic acid testing at a sampling site in Yinchuan, northwest China's Ningxia Hui Autonomous Region. Yinchuan launched a second round of all-inclusive nucleic acid testing on Wednesday since new confirmed COVID-19 cases were reported. (Xinhua/Feng Kaihua)
A staff member helps a resident register personal information for nucleic acid testing at a sampling site in Yinchuan, northwest China's Ningxia Hui Autonomous Region, Oct. 27, 2021. Yinchuan launched a second round of all-inclusive nucleic acid testing on Wednesday since new confirmed COVID-19 cases were reported. (Xinhua/Feng Kaihua)
A medical worker takes a swab sample from a resident for nucleic acid testing at a sampling site in Yinchuan, northwest China's Ningxia Hui Autonomous Region, Oct. 27, 2021. Yinchuan launched a second round of all-inclusive nucleic acid testing on Wednesday since new confirmed COVID-19 cases were reported. (Xinhua/Feng Kaihua)
Residents queue up for nucleic acid testing at a sampling site in Yinchuan, northwest China's Ningxia Hui Autonomous Region, Oct. 27, 2021. Yinchuan launched a second round of all-inclusive nucleic acid testing on Wednesday since new confirmed COVID-19 cases were reported. (Xinhua/Feng Kaihua)
Residents register their personal information for nucleic acid testing at a sampling site in Yinchuan, northwest China's Ningxia Hui Autonomous Region, Oct. 27, 2021. Yinchuan launched a second round of all-inclusive nucleic acid testing on Wednesday since new confirmed COVID-19 cases were reported. (Xinhua/Feng Kaihua)
A resident shows QR code to register personal information for nucleic acid testing at a sampling site in Yinchuan, northwest China's Ningxia Hui Autonomous Region, Oct. 27, 2021. Yinchuan launched a second round of all-inclusive nucleic acid testing on Wednesday since new confirmed COVID-19 cases were reported. (Xinhua/Feng Kaihua)
