China News Service, Shanghai, May 29 (Reporter Chen Jing) At the press conference on the prevention and control of the new crown pneumonia epidemic in Shanghai held on the 29th, Zhao Dandan, deputy director of the Shanghai Municipal Health Commission, said that there was a new case in the community in Pudong New Area, Shanghai. The positive infected persons found in the screening, where they live in Lane 910, Dingxiang Road, Huamu Street, Pudong New Area, are listed as medium-risk areas, and the risk level of other areas in Shanghai remains unchanged.

  On the same day, the Shanghai Municipal Government Information Office introduced the plan to adjust and optimize the nucleic acid detection time, and will make dynamic adjustments according to the situation of epidemic prevention and control.

From 0:00 on June 1st, people entering public places with clear epidemic prevention requirements and taking public transportation must hold a negative nucleic acid test certificate within 72 hours; those who leave Shanghai still need to provide a negative nucleic acid test certificate within 48 hours and 24 Negative antigen test certificate within 24 hours (antigen test certificate can be exempted with negative nucleic acid test certificate within 24 hours).

Those who come to Shanghai and return to Shanghai must provide a negative nucleic acid test certificate within 48 hours.

For employees in related industries or positions that require regular nucleic acid screening, such as airports, ports, medical institutions, centralized isolation, and cold-chain logistics, as well as mobile personnel such as delivery and delivery, urban security, etc., the relevant nucleic acid testing requirements of the country and the city shall be implemented.

  It is reported that on the 28th, Shanghai added 29 local confirmed cases of new coronary pneumonia and 93 local asymptomatic infections; 1 local confirmed case (mild) was found in the screening of relevant risk groups.

Zhao Dandan said that the case was newly reported in Pudong New Area and has been transferred to a designated medical institution for isolation and treatment.

According to reports, the emergency response mechanism for epidemic prevention and control in the city and district responded immediately, comprehensively carried out epidemiological investigations, relevant personnel investigation, sampling testing and prevention and control management, and implemented epidemic prevention measures such as terminal disinfection of relevant places and environments.

As of 8:00 on May 29, a total of 10 close contacts of the case in Shanghai have been investigated, all of which have been quarantined in a centralized manner, and the nucleic acid test results were all negative.

  On the same day, Yan Bo, deputy head of Pudong New Area, introduced that the positive infected person was a 29-year-old man.

At present, he has been transferred to Pudong Hospital for isolation and treatment. The clinical examination showed symptoms such as fever, cough, and sore throat. There were no imaging features of new coronary pneumonia on lung CT, and he was diagnosed as a confirmed case of new coronary pneumonia (mild).

After investigation, the positive infected person has completed 2 doses of the new coronavirus vaccine.

Epidemiological investigations show that the positive infected person has not left the place of residence within 14 days, and the activity trajectory is limited to the residential area.

  Recently, several new cases of positive infection have been reported sporadically in Shanghai society.

Wu Huanyu, deputy director of the Shanghai Center for Disease Control and Prevention, said that after the outbreak of the epidemic, the city and district centers for disease control and prevention followed the "2+4+24" requirements for normalized epidemic prevention and control. Data centers and other departments use big data and other means to aggregate multi-source data to support the determination and control of risk sites, risk personnel determination, placement, tracking and control, and strive to control the spread and spread of the epidemic as soon as possible.

  On the 29th, 3 cases of local asymptomatic infection were found in the screening of relevant risk groups in Shanghai, and they were all residents of Xujing Town, Qingpu District.

Wu Huanyu introduced the relevant work on relocation. The outbreak may be highly related to the spillover from a construction site within the town's jurisdiction, the possibility of community transmission is small, and the risk is basically controllable.

He said that at present, the city and district emergency response teams are stepping up efforts to trace the origin of other local epidemics.