2019-nCoV antigen can be self-assessed at home with antigen detection kits and is primarily indicated for early triage and rapid management of suspected infected populations. 2019-nCoV antigen detection method: open the disposable sampler, head slightly tilted back, the sampler along the lower nasal passage into the inward slowly about 1 cm, close to the nasal cavity to rotate, the other side of the nasal cavity, the same way. Open the sample processing tube, insert the nasal swab into the sample extraction solution and pump up and down. Remove the kit, put 2~3 drops of the liquid in the sample processing tube vertically into the sampling hole of the kit, and wait for fifteen minutes to check the result. A positive result for the 2019-nCoV antigen test cannot be used to confirm a diagnosis of neocoronavirus infection. A negative antigen result also cannot be used to rule out infection with Neocoronavirus. In the event of a positive test result, or if infection with Neocoronavirus is highly suspected despite a negative test result, it is recommended that you seek medical attention and have a nucleic acid test performed under the supervision of your doctor for an accurate determination. Tip: In this article, the terms “new coronavirus pneumonia” and “new coronavirus pneumonia” were renamed to “new coronavirus infection” on December 26, 2022, as announced by the National Health Commission.