Is it illegal to sell antigens in shops in Pinduoduo?

Hello, it is illegal for individuals to sell antigens online. According to relevant laws and regulations, novel coronavirus test reagents are managed as the third kind of medical devices. Individuals cannot engage in the third kind of medical devices, including the second kind of business activities, and it is illegal for individuals to sell COVID-19 antigen kits on online platforms such as friends circle. On March 30th, 2020, the State Administration of Pharmaceutical Products issued "Regulatory Requirements and Standards for Testing Reagents and Protective Articles in novel coronavirus, China", which listed novel coronavirus testing reagents as the third category of medical device management. ?