Adult nucleic acid mixed positive, how does the child's health code show that the service is not normal?

Adult nucleic acid mixed positive, children's health code shows abnormal service. It may be that the result of nucleic acid mixed test is positive, so it is necessary to check the display results. Or the nucleic acid test result is suspected to be false positive, and the health code will turn red because the first result is nucleic acid positive. However, if the detection result of nucleic acid is negative, and the abnormality of nucleic acid is a false negative due to the problem of sampling samples or a false negative due to the pollution of nucleic acid samples, the health code will not change color, and it is still a green code.