A medical worker collects a swab sample from a child at a COVID-19 testing site in Baiwangzhuang Village of Jingxing County, Shijiazhuang, capital of north China's Hebei Province, Jan. 20, 2021. Shijiazhuang on Wednesday launched the third round of citywide nucleic acid testing, which is going to be completed within three days. (Xinhua/Jin Liangkuai)
A medical worker collects a swab sample from a child at a COVID-19 testing site in Qiaoxi District of Shijiazhuang, capital of north China's Hebei Province, Jan. 20, 2021. Shijiazhuang on Wednesday launched the third round of citywide nucleic acid testing, which is going to be completed within three days. (Xinhua/Mu Yu)
A medical worker collects a swab sample from a resident at a COVID-19 testing site in Yuhua District of Shijiazhuang, capital of north China's Hebei Province, Jan. 20, 2021. Shijiazhuang on Wednesday launched the third round of citywide nucleic acid testing, which is going to be completed within three days. (Xinhua/Zhu Xudong)
A medical worker collects a swab sample from a child at a COVID-19 testing site in Yuhua District of Shijiazhuang, capital of north China's Hebei Province, Jan. 20, 2021. Shijiazhuang on Wednesday launched the third round of citywide nucleic acid testing, which is going to be completed within three days. (Xinhua/Zhu Xudong)
A medical worker collects a swab sample from a child at a COVID-19 testing site in Qiaoxi District of Shijiazhuang, capital of north China's Hebei Province, Jan. 20, 2021. Shijiazhuang on Wednesday launched the third round of citywide nucleic acid testing, which is going to be completed within three days. (Xinhua/Mu Yu)
A medical worker collects a swab sample from an elderly woman at a COVID-19 testing site in Qiaoxi District of Shijiazhuang, capital of north China's Hebei Province, Jan. 20, 2021. Shijiazhuang on Wednesday launched the third round of citywide nucleic acid testing, which is going to be completed within three days. (Xinhua/Mu Yu)
A medical worker collects a swab sample from a man at a COVID-19 testing site in Qiaoxi District of Shijiazhuang, capital of north China's Hebei Province, Jan. 20, 2021. Shijiazhuang on Wednesday launched the third round of citywide nucleic acid testing, which is going to be completed within three days. (Xinhua/Mu Yu)
A medical worker collects a swab sample from a child at a COVID-19 testing site in Yuhua District of Shijiazhuang, capital of north China's Hebei Province, Jan. 20, 2021. Shijiazhuang on Wednesday launched the third round of citywide nucleic acid testing, which is going to be completed within three days. (Xinhua/Zhu Xudong)
A medical worker collects a swab sample from a resident at a COVID-19 testing site in Qiaoxi District of Shijiazhuang, capital of north China's Hebei Province, Jan. 20, 2021. Shijiazhuang on Wednesday launched the third round of citywide nucleic acid testing, which is going to be completed within three days. (Xinhua/Mu Yu)
A medical worker collects a swab sample from a resident at a community COVID-19 testing site in Xinhua District of Shijiazhuang, capital of north China's Hebei Province, Jan. 20, 2021. Shijiazhuang on Wednesday launched the third round of citywide nucleic acid testing, which is going to be completed within three days. (Photo by Liang Zidong/Xinhua)
A medical worker collects a swab sample from a child at a community COVID-19 testing site in Xinhua District of Shijiazhuang, capital of north China's Hebei Province, Jan. 20, 2021. Shijiazhuang on Wednesday launched the third round of citywide nucleic acid testing, which is going to be completed within three days. (Photo by Liang Zidong/Xinhua)
A resident registers personal information at a community COVID-19 testing site in Xinhua District of Shijiazhuang, capital of north China's Hebei Province, Jan. 20, 2021. Shijiazhuang on Wednesday launched the third round of citywide nucleic acid testing, which is going to be completed within three days. (Photo by Liang Zidong/Xinhua)
