What if an individual sells a neighbor antigen

It is illegal.

According to the provisions of the pharmaceutical sales, antigen reagents belong to the medical equipment, unqualified individuals selling privately is an illegal act, selling more than 2 boxes, the drug supervision department can confiscate the proceeds, fines. If the individual sales of antigen reagents and counterfeit products, or fake for real, unqualified products as qualified products, and the sales amount is large, but also suspected of producing and selling shoddy products crime, the circumstances are more serious.

Antigen is an immune substance produced in the human body. Antigens are substances that stimulate the immune system in vivo or in vitro to produce an immune response, generate antibodies and lymphocytes, and bind specifically to the corresponding antibodies and lymphocytes.