Antigen antibody test and nucleic acid test are not the same, both are important ways to screen for new coronavirus infection, but there are some differences in the scope of application, testing methods and test results. 1. Scope of application: antigen antibody test is simple, easy to operate, and has a wider scope of application, and its applicable population includes isolation and observation personnel, close contacts, the general population, etc., can be detected on their own; whereas nucleic acid test is more specialized, and needs to be operated by specialized nucleic acid testing personnel such as health care personnel. 2. Detection mode: antigen detection is easy to operate, can be used at home, convenient and fast, 15 minutes automatic results. Nucleic acid test must be carried out in the laboratory, need to be operated by professional inspectors, the detection method is relatively complex, time-consuming, slow results; 3. Accuracy of the test results: If the amount of antigen and antibody test specimens is small, it may lead to false negatives; in addition, if the specimen exists in the protein components similar to the viral antigen, it is also prone to false positives. Nucleic acid testing, on the other hand, tests for the presence of viral genes in the specimen, and its results are relatively more accurate. In short, antigen test and nucleic acid test are not the same, if you need to do the new crown pneumonia virus test, it is recommended that you consult your doctor and choose the correct test. Tip: In this article, the terms “new coronavirus pneumonia” and “new coronavirus pneumonia” were renamed to “new coronavirus infection” on December 26, 2022, as announced by the National Health Commission.