On May 2, at the 322nd press conference on the prevention and control of novel coronavirus pneumonia in Beijing, Lin hang, deputy district head of Haidian District, introduced that Haidian District had the following information: jiahuiyuan, Huaao center, Zizhuyuan street, Building 29, shuangziyuan community, Balizhuang street, building 3, courtyard 101, West Third Ring North Road, Balizhuang street, No. 97, West Third Ring North Road, Balizhuang street, Beijing Haidian experimental middle school west campus, Hutong where No. 353, tundian village, Xibeiwang Town, was located Unit 3, building 1, yard 10, jingouhe Road, Yongding Road Street and building 34, Xiyuan Community, Zizhuyuan street were sealed and controlled.

Buildings 1, 2 and 3, Hua’ao center, Zizhuyuan street, other buildings except Building 29, shuangziyuan community, Balizhuang street, and complex buildings 35, 32 and 33, Xiyuan Community, Zizhuyuan Street shall be subject to control area management.

Implement prevention zone management in other areas of Zizhuyuan street Hua’ao center, surrounding communities of shuangziyuan community and other areas of Xiyuan Community of Zizhuyuan street.

She said that in the next step, Haidian District will refine the epidemiological investigation, investigate the risk points, and publish the risk points and risk personnel involved in the outer area at the first time, spread them horizontally and place them. As of 14:00, 135 cases had been closely connected and 24 cases had been classified, and control measures had been implemented.

According to Lin hang, Haidian District carried out nucleic acid detection for all risk points and risk personnel at the first time. As of 14:00, 1816 personnel samples were collected. Except for diseases, the other results were negative. A total of 120 samples were collected for environmental testing of key parts in the home environment and public area of the case. Except for 2 positive cases in the home environment of case 4, the other results were negative.