The mechanism of action of<unk> is not fully understood, however, it is suggested that it involves activation of the innate immune system to produce a nonspecific immune response and activation of the adaptive immune system to produce a specific immune response. Following the injection, the innate immune system is activated and sends large amounts of phagocytes to the injection site which kills the microorganisms. Phagocytes will then present the antigens to T helper cells to activate the adaptive immune system. T helper cells activate macrophages and neutrophils to aid in killing the pathogenic microorganisms. T helper cells also aid plasma cells to produce antibodies, thus allowing the immune system to “remember” the vaccine agents. As the surface antigens in the vaccine are the same as those of the disease, the immune system can recognise the pathogenic agents and produce an immune response to kill them when the pathogen is encountered.
Autogenous vaccines
Synthetic vaccine
Therapeutic vaccines
Genetically modified vaccine
Conjugate vaccine
Cell-based vaccine
Animal vaccination
Vaccine