New crown self-test generally refers to the new crown antigen test, there is the possibility of false-positive, and personal operation, environmental pollution, etc. are related to the need for new crown virus nucleic acid test to further confirm the diagnosis of whether the new crown virus infection.
The specificity of the new crown antigen test is not 100%, so there is a possibility of false-positive test results, which is related to improper operation and environmental contamination of the sample.
Therefore, when the new crown antigen test is positive, it can not confirm the diagnosis of infection with the new crown virus, but also need to further improve the new crown virus nucleic acid test, and only if the new crown virus nucleic acid test is positive, it can confirm the diagnosis of infection with the new crown virus.
Although there is a possibility of false positives with the Neo-Crown antigen test, it is widely used because of its simplicity, applicability, and rapid results.