Generally speaking, the two bars of the new coronavirus antigen test only indicate a positive result, but it does not mean a confirmed diagnosis. Currently, there are two main types of tests for new coronavirus: antigen test and nucleic acid test. Antigen test is more convenient and provides faster results, but it is less accurate and therefore can only be used as an aid. The presence of two bars in the “C” and “T” positions on the antigen test is indicative of a positive test. Whether or not the test is truly positive requires contacting the local community and going to a fever clinic or designated hospital for further nucleic acid testing. Nucleic acid test is a highly accurate and sensitive means of confirming the diagnosis of the novel coronavirus by examining the specific nucleic acid sequences of the virus, so the diagnosis is confirmed when the nucleic acid result is positive.