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A vaccine is an immunogen, the administration of which is intended to stimulate the immune system to prevent, ameliorate, or treat a disease or infection. A vaccine may be a live attenuated preparation of microorganisms, inactivated (killed) whole organisms, living irradiated cells, crude fractions, or purified immunogens, including those derived from recombinant DNA in a host cell, conjugates formed by covalent linkage of components, synthetic antigens, polynucleotides (such as the plasmid DNA vaccines), mRNA, living vectored cells expressing specific heterologous immunogens, or cells pulsed with immunogen. Vaccines are highly complex products that differ from small molecule drugs because of the biological nature of the source materials such as those derived from microorganisms as well as the various cell substrates from which some are derived. Regardless of the technology used, because of their complexities, vaccines must undergo extensive testing and characterization. Special expertise and procedures are required for the manufacture, control, and regulation of vaccines. Throughout their life cycle from preclinical evaluation to post-licensure lot release testing, vaccines are subject to rigorous testing and oversight by manufacturers and national regulatory authorities. In this chapter, an overview of the regulatory evaluation and testing requirements for vaccines is presented. © 2022. The Author(s), under exclusive license to Springer Science+Business Media, LLC, part of Springer Nature.


Norman W Baylor. The Regulatory Evaluation of Vaccines for Human Use. Methods in molecular biology (Clifton, N.J.). 2022;2412:483-501

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PMID: 34918264

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