The new coronary nucleic acid is not self-tested, while the new coronary virus antigen is self-tested. The new coronavirus antigen can be tested by itself. Positive, negative, or invalid results are determined by the coloration of the “C” and “T” bands. 1. Positive result: If the “C” and “T” bands show red or purple coloration, there is a possibility of novel coronavirus infection. 2. Negative result: If the “C” area shows a red or purple band, but the “T” area does not, it suggests that novel coronavirus infection may not be present. 3. Invalid result: no band at “C”. Whether or not a band is shown at “store”, the result is invalid and the test must be repeated. Positive results of the new coronavirus antigen test, with or without respiratory symptoms such as fever or cough, should be reported immediately to the community where they are found and should be transferred to a designated healthcare facility as soon as possible to have the nucleic acid test repeated to determine whether or not they are infected with the new coronavirus. Antigen testing, as a supplement to novel coronavirus testing, can only be used to screen specific populations and is not a substitute for nucleic acid test results. It is recommended that a diagnosis be made under the guidance of a physician and in conjunction with the nucleic acid test results.