I received a message with abnormal nucleic acid, but I haven't found any symptoms yet.

The CDC sent a text message saying that there was no report of abnormal nucleic acid, which means that the nucleic acid test was positive, but it was not reported for the time being. According to relevant data, abnormal nucleic acid results mainly refer to unqualified test results, including the possibility of false positive or false negative, but it does not mean that the nucleic acid test results must be positive. There are sample problems, reagent problems and subjects problems that affect the results. An abnormal nucleic acid test result in COVID-19 means an abnormal nucleic acid test result, and a second or more nucleic acid tests are needed to explain whether COVID-19 is infected.