A medical worker collects nucleic acid sample at a testing site at the Fushun community in Harbin, northeast China's Heilongjiang Province, Jan. 23, 2021. Citizens in Harbin have received nucleic acid testing for the COVID-19 prevention and control. (Xinhua/Wang Jianwei)
Citizens in Harbin receive nucleic acid testing
Source: Xinhua| 2021-01-24 11:05:54|Editor: huaxia