Li Baisong introduced that according to the requirements of the "New Coronavirus Pneumonia Prevention and Control Plan (Ninth Edition)", after an epidemic occurs in a certain area, based on the risk analysis and judgment, if a high-risk area is designated, if the place of residence is located, it is necessary to carry out 7 days of control according to the relevant requirements of the management of the high-risk area. After the nucleic acid test of with the corresponding frequency of nucleic acid, if there are no new infections for 7 consecutive days, and all personnel in the 7th day risk area complete one round of nucleic acid testing, when the results are all negative, then the high-risk area can be reduced to a medium-risk area. After the area is reduced to a medium-risk area, it will be controlled for 3 days according to the relevant requirements of the medium-risk area. If there are no new infections for three consecutive days, it can be reduced to a low-risk area. The total control period is 10 days.
If an epidemic occurs in a certain place, a medium-risk area is designated based on the risk analysis and judgment. After the corresponding frequency of nucleic acid tests in the early stage, if there are no new infections for 7 consecutive days and all personnel in the risk area on the 7th day complete one nucleic acid test, the results are all negative, then the medium-risk area can be reduced to a low-risk area. The control time is 7 days in total.
If a new infection occurs during the control period, the control time may be recalculated based on the risk analysis results. Because new infections appear in medium and high-risk areas, it means that under the existing discovery methods, close contacts may not be found or new transmission chains have not been found, there are loopholes and there is a risk of spread.
In addition, when an epidemic occurs in a certain area or suspected epidemic, especially in the early stages of the epidemic, when the source of the infection is still unclear and the transmission risk is not yet determined, in order to prevent the spread of the epidemic as soon as possible, relevant districts and counties will take temporary control measures for relevant places based on the results of comprehensive analysis and judgment. And dynamically adjust the scope of temporary control based on changes in the development of the epidemic situation and announce it to the public.
After all medium and high-risk areas and temporary control areas are lifted, after analysis and judgment, the corresponding areas will implement normalized prevention and control measures.
Upstream News Reporter Shi Heng Photography Liu Li
