"Just like the mRNA vaccines you know and love, it delivers the instructions for making the virus’s spike protein. But here’s what makes it novel: it also tells the body how to make more mRNA. Essentially, it provides instructions for making more instructions. It’s self-amplifying." https://www.technologyreview.com/2024/02/02/1087536/the-next-generation-of-mrna-vaccines-is-on-its-way/