Two bars on the nucleic acid self-test kit means that the result is positive, that is, infected with the characteristic virus. In a nucleic acid test, if only the C line is colored, it means negative; if the two bars, the C line and the T line, are colored at the same time, it means positive; if only the T line is colored or colorless, it means the result is invalid. Nucleic acid self-testing kits, which can currently be used to test for the Neocoronavirus, if the test result is two bars, it means that you may be infected with the Neocoronavirus. However, this test can only be used for initial rapid testing and the results can only be used to assist in diagnosis. Once positive, further tests such as nucleic acid testing are required to make a definitive diagnosis. In addition, if the test result is two bars, the patient is advised to contact the relevant authorities and receive timely isolation treatment.