The basic process of immune response, in layman’s terms, is the workflow of the body’s immune system to disinfect and sterilize. It can be divided into intrinsic immunity and adaptive immunity, the first role is the intrinsic immunity, as the name implies, the body is born with it, it includes the skin mucosa and immune cells, such as granulocytes, dendritic cells, macrophages, etc., it can be initially sterilized, the role is more extensive, can constitute the body’s first line of immune defense. If the work not completed by the first line of defense can be continued by the second line of defense behind, mainly T-cell and B-cell-mediated cellular immunity and humoral immunity, this stage of disinfection and sterilization work is stronger, specific and memory. It can bind specifically with pathogens to remove the ability to cure diseases. In addition, after working once, it will leave a large number of memory cells, and when a pathogen invades the body again, the memory cells will secrete antibodies in large quantities, thus carrying out a rapid immune response process.