Antigen test generally refers to the new crown antigen test, the new crown antigen test a number of times are two bars more than considered to be the new crown virus infection, it is recommended that patients go to the regular hospital, the new crown nucleic acid test, so as to clarify the cause of the disease. The new crown antigen test is mainly used to screen patients for the presence of new coronavirus infection, its antigen detection speed, convenient operation, but the accuracy is relatively low, can only be used for screening, can not directly replace the new crown nucleic acid test. If the patient’s result of the new crown antigen test is two bars, it is mostly considered to be due to infection with the new crown virus. Patients need to go to the local medical institutions, the new crown nucleic acid test, if the test results are positive, can be diagnosed as the new crown virus infection. Once the diagnosis is confirmed, the patient should actively cooperate with the doctor to take relevant treatment measures to avoid delaying the condition. During the treatment period, patients need to follow the doctor’s instructions for regular checkups in order to understand the recovery of the disease. In daily life, they should maintain a positive attitude, ensure sufficient rest time, and do not overwork.