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A medical worker takes a swab sample from a woman for COVID-19 test at a testing site in Nanjing, east China’s Jiangsu Province, July 21, 2021. Nanjing, which has a population of more than 9.3 million, carried out citywide nucleic acid testing starting on Wednesday. (Xinhua/Ji Chunpeng)
![](https://i0.wp.com/www.govisachina.com/wp-content/uploads/2021/07/1310076322_16269099546381n-1.jpg?resize=750%2C500&ssl=1)
A medical worker takes a swab sample from a woman for COVID-19 test at a testing site in Nanjing, east China’s Jiangsu Province, July 21, 2021. Nanjing, which has a population of more than 9.3 million, carried out citywide nucleic acid testing starting on Wednesday. (Xinhua/Ji Chunpeng)
![](https://i0.wp.com/www.govisachina.com/wp-content/uploads/2021/07/1310076322_16269099547311n.jpg?resize=750%2C504&ssl=1)
People register for COVID-19 test at a testing site in Nanjing, east China’s Jiangsu Province, July 21, 2021. Nanjing, which has a population of more than 9.3 million, carried out citywide nucleic acid testing starting on Wednesday. (Xinhua/Ji Chunpeng)
![](https://i0.wp.com/www.govisachina.com/wp-content/uploads/2021/07/1310076322_16269099547641n.jpg?resize=750%2C500&ssl=1)
A medical worker takes a swab sample from an elderly man for COVID-19 test at a testing site in Nanjing, east China’s Jiangsu Province, July 21, 2021. Nanjing, which has a population of more than 9.3 million, carried out citywide nucleic acid testing starting on Wednesday. (Xinhua/Li Bo)
![](https://i0.wp.com/www.govisachina.com/wp-content/uploads/2021/07/1310076322_16269099548301n.jpg?resize=750%2C500&ssl=1)
People queue for COVID-19 test at a testing site in Nanjing, east China’s Jiangsu Province, July 21, 2021. Nanjing, which has a population of more than 9.3 million, carried out citywide nucleic acid testing starting on Wednesday. (Xinhua/Li Bo)
Source: http://www.xinhuanet.com/english/2021-07/22/c_1310076322.htm
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