China News Service Mudanjiang, June 8 (Jiang Hui) "Sample inspection of 748 tubes of 3740 samples, the sampling rate was 5.9 per thousand, no inconsistency in the test results was found, the composite rate was 100%. At the press conference for the response to the New Coronary Pneumonia epidemic held on the evening of the 8th in Mudanjiang City, Heilongjiang Province, Ge Hong, Deputy Director of the Heilongjiang Provincial Health Commission stated that with the strong support of the Heilongjiang Provincial Party Committee and Provincial Government, Mudanjiang City completed the urban area in 7 days The nucleic acid detection of 658772 people mainly adopts the twelve-word strategy of "mixed tube screening, single verification, sampling review", which not only ensures the quality and accuracy of the test, but also improves the detection efficiency.
From 1st to 7th June, Mudanjiang City, after Wuhan City in Hubei Province, became another nationwide nationwide nucleic acid screening city. A total of 19 asymptomatic infections were detected, and 1,529 close contacts were followed up. Among the 19 asymptomatic infections, males accounted for 56.67% and females accounted for 43.33%; the youngest were 5 years old and the oldest were 70 years old; 5 of them were decoration workers.
Ge Hong, deputy director of the Heilongjiang Provincial Health Commission, introduced the situation of nucleic acid screening in Mudanjiang at the meeting. Photo courtesy of Mudanjiang City
According to Ge Hong, Mudanjiang's national nucleic acid investigation invited national and provincial technical experts to repeatedly demonstrate, based on the full learning of foreign experience, based on the principles of "assuring quality, improving efficiency, reducing costs, and ensuring safety", combined with reality Formulated the "Implementation Plan for Expanding Nucleic Acid Detection in Mudanjiang City". Mainly adopt the twelve-word strategy of "mixed tube screening, single verification, sampling review", which not only ensures the quality and accuracy of the test, but also improves the detection efficiency. "Mixed-tube screening" refers to the pharyngeal swab samples of ordinary residents, which are mixed in a tube of 5 people and placed in a sampling tube for testing. If the test result of the mixed sample of 5 people is negative, the test result of 5 people is all negative; if the test result of the test of 5 mixed samples is positive, the 5 people will be re-sampled and tested by single tube. In this way, the actual workload required for testing in the laboratory is reduced to one-fifth of the original, greatly improving the testing efficiency. "Single testability" is to adopt the method of one person and one tube for the key population such as the positive result of the mixed tube screening test and the close contacts of positive infected persons. If the nucleic acid test result is positive, report the final test result. "Sample review" is an indispensable monitoring mechanism to ensure the quality and accuracy of testing. In the 7 days of conducting centralized testing, the Heilongjiang Provincial Center for Disease Control randomly sampled samples from Mudanjiang. A total of 748 tubes of 3740 samples were sampled. The sampling rate was 5.9 per thousand. No inconsistent test results were found and the compound rate was 100. %.
At the same time, Mudanjiang's national nucleic acid investigation also focused on the quality control of the "two ends and one line". At the "sampling end", 2330 medical staff were mobilized in Mudanjiang City to form 23 sampling teams. After centralized training for registration, sampling techniques, protection standards and on-site disinfection in batches, the package operation was carried out in strict accordance with the specifications. ; Reasonably set the sampling process, the dynamic link of each element link, reduce congestion, and avoid personnel gathering. At the "laboratory testing end", provincial quality control experts are stationed in various laboratories to guide and supervise laboratory quality control and biosafety on-site to ensure laboratory testing environment, personnel and sample safety. "First-line" means to implement closed-loop operation in the sample transportation connecting the "two ends", dedicated car management, strengthen the implementation of responsibilities, strictly monitor the entire process of sample transfer, and ensure that the transfer box, temperature control and handover procedures are all in accordance with national standards And processes require standardized operations. (Finish)