Aerial photo shows citizens queuing up to receive nucleic acid test at a testing site in Chengguan District of Lanzhou, northwest China's Gansu Province, Oct. 24, 2021. The Chengguan and Qilihe districts in Lanzhou have launched a second round of all-inclusive nucleic acid testing Sunday since new local COVID-19 infections were reported. (Xinhua/Fan Peishen)
A child receives a nucleic acid test at a testing site in Chengguan District of Lanzhou, northwest China's Gansu Province, Oct. 24, 2021. The Chengguan and Qilihe districts in Lanzhou have launched a second round of all-inclusive nucleic acid testing Sunday since new local COVID-19 infections were reported. (Xinhua/Fan Peishen)
Aerial photo shows citizens queuing up to receive nucleic acid test at a testing site in Chengguan District of Lanzhou, northwest China's Gansu Province, Oct. 24, 2021. The Chengguan and Qilihe districts in Lanzhou have launched a second round of all-inclusive nucleic acid testing Sunday since new local COVID-19 infections were reported. (Xinhua/Fan Peishen)
Citizens queue up to receive nucleic acid test at a testing site in Chengguan District of Lanzhou, northwest China's Gansu Province, Oct. 24, 2021. The Chengguan and Qilihe districts in Lanzhou have launched a second round of all-inclusive nucleic acid testing Sunday since new local COVID-19 infections were reported. (Xinhua/Fan Peishen)
Citizens queue up to receive nucleic acid test at a testing site in Chengguan District of Lanzhou, northwest China's Gansu Province, Oct. 24, 2021. The Chengguan and Qilihe districts in Lanzhou have launched a second round of all-inclusive nucleic acid testing Sunday since new local COVID-19 infections were reported. (Xinhua/Fan Peishen)
Aerial photo shows citizens queuing up to receive nucleic acid test at a testing site in Chengguan District of Lanzhou, northwest China's Gansu Province, Oct. 24, 2021. The Chengguan and Qilihe districts in Lanzhou have launched a second round of all-inclusive nucleic acid testing Sunday since new local COVID-19 infections were reported. (Xinhua/Fan Peishen)
Aerial photo shows citizens queuing up to receive nucleic acid test at a testing site in Chengguan District of Lanzhou, northwest China's Gansu Province, Oct. 24, 2021. The Chengguan and Qilihe districts in Lanzhou have launched a second round of all-inclusive nucleic acid testing Sunday since new local COVID-19 infections were reported. (Xinhua/Fan Peishen)
