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Nucleic acid testing conducted in Heihe, NE China (4)

(Xinhua) 09:31, November 08, 2021

A medical worker takes a swab sample from a resident for nucleic acid testing in Henantun Village of Xingfu Town in Heihe, northeast China's Heilongjiang Province, Nov. 7, 2021. (Xinhua/Wang Song)


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(Web editor: Zhong Wenxing, Liang Jun)

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