Two bars on the Neo-Crown antigen test do not necessarily confirm the diagnosis. A two-bar Neocollins antigen test only means that the test result is currently positive and a Neocollins infection may be present. Further diagnosis through nucleic acid testing is required. The antigen test can only be used as a complementary tool, and is not conclusive on its own, so it cannot accurately determine whether or not you have been infected with the new coronavirus. False positives may occur if the antigen test is performed incorrectly or by mistake, if the doctor’s experience is insufficient or if the specimen is affected, so it is not currently used as a diagnostic criterion for novel coronavirus. If there is any doubt about the antigen test, it can be rechecked, and after an abnormality is detected, and under the supervision of a doctor, a nucleic acid test can be performed.