Two bars on the antigen test indicate a positive test result, not necessarily a confirmed infection, but it may be a false positive, but in either case it is important to take it seriously.
Generally, two bars on the antigen test means a purple or red band at both the C and T sites, and a darker or lighter band at the T site. This is a positive antigen test result, which is not a confirmation of the diagnosis, but must be taken seriously by the patient, and further nucleic acid testing is required to confirm the diagnosis, as the results of the nucleic acid test are the basis of the confirmation of the diagnosis.
In some other cases, there may be two bars in the antigen test, but the nucleic acid test is negative. For example, if the test result is judged after more than 10-15 minutes or even longer, the test result may change from negative to positive, resulting in false positives, which need to be retested, and false positives can also be caused by substandard samples or outdated reagent kits.
It is recommended to actively contact the community or hospital when two bars appear in the antigen test result, and cooperate with the medical staff for further treatment.