On March 22nd, the National Health and Wellness Commission published the Implementation Guide for Regional novel coronavirus Nucleic Acid Detection Organization (Third Edition), which revised the "all staff" in the second edition of the guide to "regions", and the size of the regions was determined by the needs of epidemic prevention and control. It is emphasized that nucleic acid detection should have a clear goal and be targeted, and it cannot be "one size fits all"; Clearly promote the monitoring mode of "antigen screening and nucleic acid diagnosis" … What should the new edition guide look at?
Why should we revise and issue the third edition of the guide?
Recently, the situation of epidemic prevention and control in China is severe and complicated, and the characteristics of Omicron mutant, such as fast spread, strong infectivity and hidden spread, put forward new and higher requirements for the organization to carry out nucleic acid screening. At the same time, in order to summarize and popularize the beneficial experience of nucleic acid screening in the early stage and guide local governments to solve the problems encountered in practice, the third edition of the guide was revised and formed.
What are the main revisions?
It mainly revised the following aspects: First, it emphasized scientific accuracy and carried out nucleic acid detection in designated areas. The "all staff" in the second edition of the guide is changed to "area", and the size of the area is determined by the needs of epidemic prevention and control. The second is to further clarify the time limit for completion. The nucleic acid detection with defined scope shall be completed within 24 hours. The third is to add a number of special work classes. According to all the links and departments involved in regional nucleic acid detection, the local authorities were instructed to set up 9 work classes, including data statistics classes and sampling matching classes, and the responsibilities of the classes were specified. The fourth is to provide the basis for measuring the testing strength. The number of sampling personnel and nucleic acid detection ability required to complete nucleic acid detection within 24 hours in various places are given clear calculation guidance. The fifth is to streamline the technical requirements for testing. Combined with the application scope and actual operation requirements of the third edition of the guidelines, the existing requirements in the technical documents such as "novel coronavirus nucleic acid detection manual for medical institutions (Trial)" are not stated in this paper, but the management requirements such as sampling organization, transportation, detection and result disposal are further highlighted and clarified.
What exactly does "area" mean?
"Area" includes sealed control area, control area and prevention area. The area may be as small as a building or as large as the whole city, which should be determined by the local epidemic prevention and control headquarters on the basis of scientific research and according to the actual needs of epidemic prevention and control, and adjusted dynamically.
What are the considerations that emphasize the accurate delineation of the detection range? Will there be a large-scale full-scale inspection in the future?
It is very important for nucleic acid detection to improve the level of scientific and accurate prevention and control. Nucleic acid detection should be clear and targeted, not "one size fits all", and make effective use of valuable nucleic acid detection resources. Therefore, the third edition of the guide emphasizes the need for accurate and rapid flow investigation and strict community control. After scientific research, the scope that needs to be tested is delineated. The scope of nucleic acid detection is directly related to whether the risk source is clear or not, and also related to many factors such as whether the traceability of the epidemic is accurate, whether the infected people are widely distributed, and whether the isolation control measures are implemented. Whether it is necessary to carry out large-scale full-scale nucleic acid detection depends on scientific judgment and serves the needs of epidemic prevention and control.
What are the key points to be paid attention to in developing regional nucleic acid detection?
To carry out regional nucleic acid detection, local party committees and governments must have strong organizational mobilization and deployment capabilities, and all departments should cooperate efficiently. Therefore, the "organization and management" part should be emphasized. In addition to organization and management, the local authorities should fully understand and prepare for the ability of nucleic acid detection in the region. Orderly organization of community sampling, information management of sampling detection, accuracy of sampling operation, avoidance of possible cross-infection during sampling, matching of sampling and inspection, accuracy of nucleic acid detection and scientific judgment after each round of detection are all key links that must be paid attention to.
Will antigen testing be used in the process of tissue testing in various places?
In the third edition of the guide, antigen detection is mentioned about the detection strategy. All localities can promote the monitoring mode of "antigen screening and nucleic acid diagnosis" in combination with the relevant requirements of antigen detection in Covid-19, increase antigen detection as a supplementary means of regional nucleic acid detection, and organize the implementation after studying and refining the implementation plan. (Xinhua News Agency reporter Song Chen, Dong Ruifeng)