ABSTRACT
Immunization is an approach adopted to provide a protective shield to the body so that it is protected against any incoming pathogenic invasion. To be effective, immunization strategies and schedules are planned to elicit strong and long-lasting immune response at both cellular and humoral levels. In most of the cases, immune response is generated by administering an antigen in association with an adjuvant for producing efcient immunological consequences. Polymers, lipids, and inorganic compounds such as alum and their derived forms, which are known as vaccine delivery systems, have been developed for generating an adjuvant-like effect.
