According to the official account of Huada Medical WeChat, from June, 5438 to February, 2020, the novel coronavirus antigen test kit developed by Huada Yuan Yin obtained the medical device registration certificate issued by the State Administration of Medical Supplies. The kit uses immunochromatographic sandwich method and fluorescent microspheres as tracer markers to detect COVID-19 N antigen in oropharyngeal swab and nasopharyngeal swab samples suspected of COVID-19 infection. The detection kit has the characteristics of high detection sensitivity, strong specificity, good stability, rapid results and the like. Simple and convenient, you can test it at home. It only takes about 15 minutes to complete.