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)

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)

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)

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)

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

Categories: COVID-19

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