Positive neocoronavirus antigen does not necessarily mean that you are infected with neocoronavirus. The results of the new crown nucleic acid test are an accurate basis for diagnosing the new crown virus. Positive antigen is only a suspicion of infection by the New Crown Virus. If there is a positive antigen, it is necessary to do the New Crown nucleic acid test in time. If there is a positive nucleic acid test result, it means that there is infection by the New Crown Virus, but there are times when there is a false positive because of the New Crown vaccination. In order to prevent the new coronavirus, early detection, early isolation, early treatment, all suspected new coronavirus infection of the population, need to do the new coronavirus antigen test or do the new coronavirus nucleic acid test, and actively cooperate with the epidemic prevention institutions of disease prevention measures. If the new crown antigen is positive, it is recommended to complete the relevant examinations in a timely manner to clarify the diagnosis, and carry out isolation according to the requirements.