The term nucleic acid antigen test does not exist, it should be nucleic acid test and antigen test, both of which have a certain degree of accuracy. According to the documents published by the National Health and Health Commission, the consistency between nucleic acid testing and antigen testing, with the current testing methods, is about 95.8% when the Ct value is less than 25, about 50.7% when the Ct value is higher than 25, and only 20.9% when the Ct value is higher than 30. The percentage of false-negative antigen test results was high. Despite the high percentage of false-negative antigen test results, it is possible to find infected individuals with higher viral loads and higher infectiousness, which is powerful for outbreak prevention and control. If you are unfortunate enough to have a positive nucleic acid test or antigen test, you do not need to be afraid. From the perspective of epidemic prevention and control, according to the relevant documents of the government departments, after a positive test is found, the test will be re-tested and re-verified in accordance with the multi-stage review steps, so you do not need to worry about the situation of miscarriage of justice.