The reporter from the head office learned from the press conference on epidemic prevention and control in Shanghai held this morning that on May 9, Shanghai was divided into 9,191 closed control areas, involving a population of 2.11 million; 18,925 control areas, involving a population of 3.27 million ; 46,156 prevention zones, involving a population of 17.92 million.

  According to Zhao Dandan, deputy director of the Shanghai Municipal Health Commission, during the epidemiological survey, it was found that some of the positive infected persons were migrants from the prevention area.

In order to eliminate hidden dangers as soon as possible, Shanghai will increase the frequency of nucleic acid screening in the prevention area. Within this week (May 8 to 14), each district should carry out at least two nucleic acid tests in the prevention area.

(Reporter Zhang Qian Bai Tingjun Pang Qingshan)