People queue up to receive testing at a nucleic acid testing spot in Zhengzhou, capital of central China's Henan Province, Aug. 8, 2021. Zhengzhou launched the third round of citywide nucleic acid testing on Sunday to cope with a COVID-19 resurgence. (Xinhua/Zhu Xiang)
A medical staff takes a swab sample from a child at a nucleic acid testing spot in Zhengzhou, capital of central China's Henan Province, Aug. 8, 2021. Zhengzhou launched the third round of citywide nucleic acid testing on Sunday to cope with a COVID-19 resurgence. (Xinhua/Zhu Xiang)
A medical staff takes a swab sample from a man at a nucleic acid testing spot in Zhengzhou, capital of central China's Henan Province, Aug. 8, 2021. Zhengzhou launched the third round of citywide nucleic acid testing on Sunday to cope with a COVID-19 resurgence. (Xinhua/Zhu Xiang)
A medical staff takes a swab sample from a child at a nucleic acid testing spot in Zhengzhou, capital of central China's Henan Province, Aug. 8, 2021. Zhengzhou launched the third round of citywide nucleic acid testing on Sunday to cope with a COVID-19 resurgence. (Xinhua/Zhu Xiang)
A medical staff takes a swab sample from a man at a nucleic acid testing spot in Zhengzhou, capital of central China's Henan Province, Aug. 8, 2021. Zhengzhou launched the third round of citywide nucleic acid testing on Sunday to cope with a COVID-19 resurgence. (Xinhua/Zhu Xiang)
A medical staff takes a swab sample from a woman at a nucleic acid testing spot in Zhengzhou, capital of central China's Henan Province, Aug. 8, 2021. Zhengzhou launched the third round of citywide nucleic acid testing on Sunday to cope with a COVID-19 resurgence. (Xinhua/Zhu Xiang)
