Why did the results of the new coronavirus 20-in-1 mixed collection test notify the relevant departments to temporarily notify the 20 subjects of the mixed collection test?

Some citizens reported that after queuing for a long time, some people got tubes, some got QR codes, and some got nothing. Did I take a fake sample?

The editor would like to publicize this. Shanghai is currently carrying out grid-based nucleic acid screening work. In order to improve detection efficiency and shorten reporting time, 10:1 and 20 are adopted successively in accordance with relevant technical specifications. :1 Mixed mining method.

1. What is nucleic acid 10:1/20:1 mixed collection?

Nucleic acid 10:1/20:1 mixed collection is to sample 10/20 individual throat swab specimens into a test tube for nucleic acid testing.

II. Requirements for mixed collection of nucleic acids

1. Mixed collection means that specimens from 10/20 individuals are collected into one test tube for testing at the same time;

2. Mixed collection It can save costs for the general public and improve testing efficiency at the same time;

3. The disadvantage is that if the test result of the tube is positive or suspicious, the nucleic acid test report for 10/20 people will be issued after review, and the time There is a delay.

3. Nucleic acid mixed collection test report

1. If the mixed collection result is negative, then all 10 or 20 people will issue a negative nucleic acid test report;

2 , if the mixed collection test result is positive, gray area or single target positive, notify the community health service center to temporarily isolate 10 or 20 subjects from the mixed collection tube, and re-collect single tube swabs for review.

3. If the single-tube nucleic acid test result is negative, the report will be reported as a negative result. If the single-tube test result is positive, the report will be reported according to the procedures and follow-up work such as flow control will be started.

If you receive a call and need to check, don’t panic. The abnormal one may not be you. Please wait patiently at home for community workers to come to collect samples. At the same time, keep a good distance from your family and take personal protection. Leave home and wait for the review results.