Abstract
Following the COVID-19 outbreak, two mRNA vaccines were marketed in late 2020 after receiving FDA-approved emergency access, pioneering the use of mRNA vaccines in humans. Since then, more and more companies have joined the development and clinical trials of mRNA vaccines. At this stage, the development of mRNA vaccines is not only limited to COVID-19, but also covers infectious diseases, influenza, and cancer. Up to now, the regulation of immunogenicity of mRNA vaccines is a problem to be solved, and the controversy is mainly about typeIFN. This paper mainly introduces the classification, mechanism and characteristics of mRNA vaccines to show the basic principle of mRNA vaccines, and lists the applications of mRNA vaccines and the types of vaccines that are undergoing clinical trials, which reflects their huge application potential. The potential of mRNA vaccines is shown. With this paper, the author summarizes the current status of mRNA vaccines in order to show readers the basic principles and potentials of mRNA vaccines.
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