Nucleic acid mixing test abnormalities are not always positive.
Nucleic acid mix-up abnormalities are abnormal nucleic acid test results that are not necessarily positive, but may be false negatives or false positives, such as invalid nucleic acid samples (not enough samples were obtained, samples were not stored properly, etc.), faulty test reagents (reagents that have passed the expiration date, reagents that have been left open and exposed for too long, etc.), and problems with the person who is being tested (the person who is being tested was given the wrong information at the time of collection, etc.). In such cases, one-to-one re-testing is required to rule out or identify persons with novel coronavirus infection.
After an abnormal nucleic acid mix-up test, self-isolation in situ is required, keeping a distance from people in the same room, wearing a mask and avoiding going out. At the same time, report to the community and wait for follow-up nucleic acid testing.