Nucleic acid samples get tested in Shijiazhuang's "Huoyan" laboratory

Medical workers walk past the nucleic acid test laboratory named Huoyan, or Fire Eye, in Shijiazhuang, north China's Hebei Province, Jan. 26, 2021. As of Jan. 22, a total of 5.28 million nucleic acid samples have been tested in Shijiazhuang's "Huoyan" laboratory since it was put into use from Jan. 8. (Xinhua/Yang Shiyao)