Photo shows the "Huoyan" nucleic acid test laboratory in Harbin, northeast China's Heilongjiang Province, Jan. 30, 2021. The "Huoyan" laboratory will soon be put into use to fight the COVID-19 pandemic in Harbin. (Xinhua/Wang Song)
Medical members from the Fourth Affiliated Hospital of Harbin Medical University count medical materials in the reserve area of the "Huoyan" nucleic acid test laboratory in Harbin, northeast China's Heilongjiang Province, Jan. 30, 2021. The "Huoyan" laboratory will soon be put into use to fight the COVID-19 pandemic in Harbin. (Xinhua/Wang Song)
Photo shows the "Huoyan" nucleic acid test laboratory in Harbin, northeast China's Heilongjiang Province, Jan. 30, 2021. The "Huoyan" laboratory will soon be put into use to fight the COVID-19 pandemic in Harbin. (Xinhua/Wang Song)
Aerial photo shows the "Huoyan" nucleic acid test laboratory in Harbin, northeast China's Heilongjiang Province, Jan. 30, 2021. The "Huoyan" laboratory will soon be put into use to fight the COVID-19 pandemic in Harbin. (Xinhua/Wang Song)
Photo shows the "Huoyan" nucleic acid test laboratory in Harbin, northeast China's Heilongjiang Province, Jan. 30, 2021. The "Huoyan" laboratory will soon be put into use to fight the COVID-19 pandemic in Harbin. (Xinhua/Wang Song)
Photo shows the "Huoyan" nucleic acid test laboratory in Harbin, northeast China's Heilongjiang Province, Jan. 30, 2021. The "Huoyan" laboratory will soon be put into use to fight the COVID-19 pandemic in Harbin. (Xinhua/Wang Song)
Photo shows the "Huoyan" nucleic acid test laboratory in Harbin, northeast China's Heilongjiang Province, Jan. 30, 2021. The "Huoyan" laboratory will soon be put into use to fight the COVID-19 pandemic in Harbin. (Xinhua/Wang Song)
Photo shows the "Huoyan" nucleic acid test laboratory in Harbin, northeast China's Heilongjiang Province, Jan. 30, 2021. The "Huoyan" laboratory will soon be put into use to fight the COVID-19 pandemic in Harbin. (Xinhua/Wang Song)
Medical members from the Fourth Affiliated Hospital of Harbin Medical University count medical materials in the reserve area of the "Huoyan" nucleic acid test laboratory in Harbin, northeast China's Heilongjiang Province, Jan. 30, 2021. The "Huoyan" laboratory will soon be put into use to fight the COVID-19 pandemic in Harbin. (Xinhua/Wang Song)