A medical worker from east China's Zhejiang Province takes a swab sample from a child for nucleic acid test at a community in Songjiang District of Shanghai, east China, April 4, 2022. Amid rising numbers of COVID-19 infections in its latest resurgence, Shanghai on Monday launched a citywide nucleic acid testing campaign covering the city's more than 24 million residents. (Xinhua/Zhang Jiansong)
Residents wait to take nucleic acid tests at a community in Pudong New Area of east China's Shanghai, April 4, 2022. Amid rising numbers of COVID-19 infections in its latest resurgence, Shanghai on Monday launched a citywide nucleic acid testing campaign covering the city's more than 24 million residents. (Xinhua/Ding Ting)
Medical workers from east China's Zhejiang Province take swab samples from residents for nucleic acid tests at a community in Songjiang District of Shanghai, east China, April 4, 2022. Amid rising numbers of COVID-19 infections in its latest resurgence, Shanghai on Monday launched a citywide nucleic acid testing campaign covering the city's more than 24 million residents. (Xinhua/Liu Ying)
A medical worker from east China's Jiangsu Province takes a swab sample from a resident for nucleic acid test at a community in Xuhui District of Shanghai, east China, April 4, 2022. Amid rising numbers of COVID-19 infections in its latest resurgence, Shanghai on Monday launched a citywide nucleic acid testing campaign covering the city's more than 24 million residents. (Xinhua/Gao Feng)
A medical worker from east China's Zhejiang Province takes a swab sample from a child for nucleic acid test at a community in Songjiang District of Shanghai, east China, April 4, 2022. Amid rising numbers of COVID-19 infections in its latest resurgence, Shanghai on Monday launched a citywide nucleic acid testing campaign covering the city's more than 24 million residents. (Xinhua/Liu Ying)
A medical worker from east China's Anhui Province takes a swab sample from a resident for nucleic acid test at a community in Huangpu District of Shanghai, east China, April 4, 2022. Amid rising numbers of COVID-19 infections in its latest resurgence, Shanghai on Monday launched a citywide nucleic acid testing campaign covering the city's more than 24 million residents. (Xinhua/Jin Liwang)
Residents prepare to take nucleic acid tests at a community in Putuo District of Shanghai, east China, April 4, 2022. Amid rising numbers of COVID-19 infections in its latest resurgence, Shanghai on Monday launched a citywide nucleic acid testing campaign covering the city's more than 24 million residents. (Xinhua/Chen Fei)
Medical workers from east China's Zhejiang Province prepare to conduct nucleic acid testing for residents at a community in Songjiang District of Shanghai, east China, April 4, 2022. Amid rising numbers of COVID-19 infections in its latest resurgence, Shanghai on Monday launched a citywide nucleic acid testing campaign covering the city's more than 24 million residents. (Xinhua/Liu Ying)
Aerial photo taken on April 4, 2022 shows residents waiting to take nucleic acid tests at a community in Huangpu District of Shanghai, east China. Amid rising numbers of COVID-19 infections in its latest resurgence, Shanghai on Monday launched a citywide nucleic acid testing campaign covering the city's more than 24 million residents. (Xinhua/Jin Liwang)
Volunteers help a resident register for nucleic acid test at a community in Songjiang District of Shanghai, east China, April 4, 2022. Amid rising numbers of COVID-19 infections in its latest resurgence, Shanghai on Monday launched a citywide nucleic acid testing campaign covering the city's more than 24 million residents. (Xinhua/Zhang Jiansong)
A medical worker from east China's Anhui Province takes a swab sample from a volunteer for nucleic acid test at a community in Minhang District of Shanghai, east China, April 4, 2022. Amid rising numbers of COVID-19 infections in its latest resurgence, Shanghai on Monday launched a citywide nucleic acid testing campaign covering the city's more than 24 million residents. (Xinhua/Fang Zhe)
A medical worker from east China's Jiangsu Province takes a swab sample from a resident for nucleic acid test at a community in Pudong New Area of east China's Shanghai, April 4, 2022. Amid rising numbers of COVID-19 infections in its latest resurgence, Shanghai on Monday launched a citywide nucleic acid testing campaign covering the city's more than 24 million residents. (Xinhua/Ding Ting)
Residents wait to take nucleic acid tests at a community in Xuhui District, east China's Shanghai, April 4, 2022. Amid rising numbers of COVID-19 infections in its latest resurgence, Shanghai on Monday launched a citywide nucleic acid testing campaign covering the city's more than 24 million residents. (Xinhua/Gao Feng)
Medical workers from east China's Zhejiang Province take swab samples from residents for nucleic acid tests at a community in Putuo District of Shanghai, east China, April 4, 2022. Amid rising numbers of COVID-19 infections in its latest resurgence, Shanghai on Monday launched a citywide nucleic acid testing campaign covering the city's more than 24 million residents. (Xinhua/Chen Fei)
A medical worker takes a swab sample from a man for nucleic acid test in Fengxian District of Shanghai, east China, April 4, 2022. Amid rising numbers of COVID-19 infections in its latest resurgence, Shanghai on Monday launched a citywide nucleic acid testing campaign covering the city's more than 24 million residents. (Xinhua)
