A positive test is indicated when there is a red bar in each of the C and T areas of the test kit. The test kit generally refers to the Neocoronavirus Antigen Detection Kit, which is designed to detect the surface proteins of the Neocoronavirus, and to determine the presence of Neocoronavirus infection through the combination of antigen and antibody. Therefore, a positive test is one in which a red line appears in the C and T regions. To use the test, a drop of sample is placed on the sample pad and the sample is moved forward along the test card by capillary action. The novel coronavirus antigen in the sample binds to a monoclonal antibody labeled with the novel coronavirus capsid protein, forming an antigen-antibody complex. This complex migrates upward through the membrane by capillary effect until it reaches the detection line. In summary, when the red line appears in both the C and T regions of the test kit, it suggests that the patient has a positive result and may be infected with C.neoformans, but the specific situation should be based on the results of the C.neoformans nucleic acid test. Tip: “New coronavirus pneumonia” and “new coronavirus pneumonia” mentioned in this article have been renamed to “new coronavirus infection” on December 26, 2022, as announced by the National Health Commission.