The record of nucleic acid detection will always be displayed and will not disappear. After citizens complete sampling, professional sampling and testing institutions upload the results to the health code operation background through disease control departments at all levels. Usually, citizens can click the button below the health code to make an inquiry. Large-scale nucleic acid detection, the daily data volume exceeds 654.38+0 million. It is difficult for sampling inspection institutions to upload data, and the test results show that it takes about 2-3 days. After nucleic acid detection and sampling, it should be submitted to the inspection department for corresponding virus nucleic acid detection. Nucleic acid detection is completed through five steps: sampling, sample retention, preservation, nucleic acid extraction and computer detection. If the nucleic acid detection has been completed but can't be found, because there are many people doing nucleic acid detection everywhere, it takes time for each nucleic acid detection point to upload information; It may be that the application failed, or the network conditions are not good, so you need to wait patiently. At present, the online nucleic acid query results can only be queried within 7 days, and cannot be queried after 7 days.