In general, the New Crown nucleic acid test is somewhat more accurate than the antigen test. Nucleic acid testing is used as the gold standard for confirming infection with the New Crown virus, while antigen testing is only used as a supplement to New Crown virus testing.
1. Antigen test: It utilizes the principle of antigen-antibody binding to detect the antigenic components of the virus in a sample to infer whether or not one is infected with New Crown virus. During the epidemic period, rapid initial screening can be carried out by antigen detection, but antigen detection has a certain false-positive and false-negative rate, and cannot be used as a means of confirming the diagnosis of neo-coronavirus infection, and nucleic acid testing should be carried out to confirm the diagnosis if necessary.
2. Nucleic acid test: It can directly detect whether the sample contains the specific gene of the new coronavirus, so as to confirm whether it is infected by the new coronavirus. Once the test result is positive, infection with Neocoronavirus can be confirmed, while negative results can be excluded. The results are generally more accurate and can be used as the basis for confirming the diagnosis of Neocoronavirus infection.