A medical staff conducts a nucleic acid test on a man at a COVID-19 testing site in Harbin, Northeast China's Heilongjiang province, March 15, 2022. Harbin announced on March 14 that enclosed public spaces should be temporarily closed. Anti-epidemic measures also include suspending cultural activities, night market, exhibitions and mass gatherings. [Photo/Xinhua]

A notice saying that the restaurant suspends eat-in service is seen on the Central Street in Harbin, Northeast China's Heilongjiang province, March 15, 2022. [Photo/Xinhua]

A closed cinema is seen in Harbin, Northeast China's Heilongjiang province, March 15, 2022. [Photo/Xinhua]