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Chinese Vice Premier Sun Chunlan has stressed quick response and swift containment of cluster COVID-19 cases as the Chinese New Year is approaching.

Sun urged local anti-epidemic authorities to stay alert, improve their efficiency and conduct drills.

She also called for efforts to expand the scope of screening in key sectors and at key sites for early detection of infections.

Sun, also a member of the Political Bureau of the Communist Party of China Central Committee, made the remarks while researching and directing the anti-epidemic work in north China's Tianjin from Wednesday to Monday.