Beijing: In principle, the temporary control time should not exceed 24 hours. Hard isolation, hard enclosure and other measures are strictly prohibited. On November 27, at the 426th press conference of the novel coronavirus epidemic prevention and control work in Beijing, Wang Daguang, the head of the community prevention and control team office of the leading group for the prevention and control of COVID-19 epidemic, introduced that high-risk areas are generally defined by units and buildings. When the risk of epidemic transmission is not clear or there is widespread community transmission, the scope of high-risk areas can be appropriately expanded after strict assessment. It is strictly prohibited to block fire passages, unit doors and community doors with hard enclosures. In principle, the temporary control time should not exceed 24 hours. Wang Daguang said that the city standardized the use of temporary management measures. According to the needs of epidemic prevention and control, the temporary control measures taken due to the investigation and tracing of the source of the epidemic situation, the inspection of the positive and the tracing of the positive, etc., released an announcement to the masses at the first time, made explanations and guaranteed services, and insisted on fast management, fast inspection and fast settlement. The temporary control time shall not exceed 24 hours in principle. It is not allowed to refuse the entry of the persons who are cured and discharged from the cabin after the expiration of the centralized isolation period and infection into the community and village Wang Daguang's introduction. The persons who are cured and discharged from the cabin after the expiration of the centralized isolation period and infection are allowed to enter the community and village, and they are not allowed to refuse for any reason. For the emergency medical personnel and prevention and control personnel who are included in the white list, they are allowed to enter and exit the risk area with a pass and a 24-hour nucleic acid negative certificate. The supply of vegetables and other daily necessities is sufficient and stable. In recent days, the number of vegetables on the market in Beijing's major agricultural wholesale markets has maintained a high level. The supply of vegetables is sufficient and the transaction is stable. The supply of pork and eggs is stable. Since late November, the proportion of vegetables in southern production areas has gradually increased. The production in the supply place is normal and the supply is sufficient. Vehicles transporting necessities from other ports to Beijing are relatively smooth on the road. Chaoyang District, Beijing: The residential areas that meet the conditions are unsealed in time. Chaoyang District, Beijing has unsealed 75 high-risk areas from 12:00 on November 26 to 8:00 on November 27. For the risk points involved, the area shall be unblocked in time after flow survey, nucleic acid detection, environmental disinfection and sterilization and other measures to minimize the impact on residents' lives. Guangzhou Health Commission: In combination with the current epidemic situation, the staff evacuation work in the risk area was carried out in an orderly manner to maximize the willingness of staff evacuation in the risk area. At the Guangzhou epidemic prevention and control news conference on November 27, the Guangzhou Health Commission said that Guangzhou continued to implement the 20 measures of the joint prevention and control mechanism of the State Council to further optimize the epidemic prevention and control work, and in combination with the current epidemic situation, The evacuation of personnel in the risk area shall be carried out in an orderly manner to maximize the willingness of personnel in the risk area to evacuate. A special relief work team was set up. On the basis of a comprehensive analysis and assessment of risks, a work plan was formulated in accordance with the principles of classified policies, batch transfer, safety and order, and strict prevention of spillovers. The willingness to return home and visit relatives and friends was investigated one by one against the personnel roster and relief conditions. The "point-to-point" communication with the relief destination was conducted in advance to achieve the whole process closed-loop management and "double handshake" of return personnel information, Ensure that the returning personnel implement the relevant prevention and control requirements of the destination