On March 1, Shenzhen held a press conference on epidemic prevention and control. It is reported that at present, the situation of epidemic prevention and control in Shenzhen has made positive changes, and the momentum of spread has been initially curbed. Lin Hancheng, a secondary inspector of Shenzhen Municipal Health Commission, said that recently, the epidemic prevention and control work in Shenzhen is facing great pressure. Since the new year's Eve on January 31, Shenzhen has continuously reported new cases, especially 165 positive cases from February 15 to February 28. Aiming at the characteristics of strong transmission power, fast transmission speed, high concealment and general susceptibility of people, Shenzhen adheres to the general policy of "dynamic clearing" and has taken rapid, decisive and powerful prevention and control measures: find out the close contacts, secondary close contacts and key people through rapid and accurate flow regulation and tracing to the source; Quickly and scientifically delimit the sealing and control area, control area and prevention area, take corresponding control measures according to the risk level, and strictly manage some areas with concentrated cases and high transmission risk to prevent the overflow of the epidemic; Potential infected persons were screened through nucleic acid testing, and several rounds of large-scale nucleic acid testing were carried out in key areas such as Luohu, Futian and Nanshan; The management of social aspects has also been strengthened. It is required to enter the city's community areas and public places for temperature measurement, scanning place codes, providing nucleic acid negative certificates, etc. "At present, the situation of epidemic prevention and control in our city has made positive changes. Recently, the vast majority of new cases have been found in close contacts or key groups under centralized isolation and observation, and the momentum of diffusion has been initially curbed." Lin Hancheng said, "but we still can't relax at all. The next period of time is the most urgent period for Shenzhen to fight the epidemic." He called on the general public to continue to support and cooperate with various epidemic prevention and control measures in Shenzhen until the "dynamic clearing" is realized. (Xinhua News Agency)