An antigen as a substance that can mobilize the immune system and provoke an immune
responses. Antigens are the target of all immune responses and are therefore regarded as intruders (Marieb & Hoehn, 2007).

Immunogenicity is the ability of a substance such as an antigen to stimulate the production of specific lymphocytes and antibodies(Marieb & Hoehn, 2007).

Vaccines have have a high potential to eradicate and alleviate the burden of disease in humans.

In order to design an effective vaccine for a specific disease or illness, a thorough understanding of how the immune system works and how different factors will increase or decrease immunogenicity, needs to be understood. This will ensure a higher efficacy of the vaccine.

We intend to provide you with an understanding of the science of how vaccines interact with our immune system.