An answer from a regular Joe based on this fine write-up describing how the Pfizer mRNA vaccine is put together: https://berthub.eu/articles/posts/reverse-engi

An answer from a regular Joe based on this fine write-up describing how the Pfizer mRNA vaccine is put together: https://berthub.eu/articles/posts/reverse-engineering-source-code-of-the-biontech-pfizer-vaccine/ https://berthub.eu/articles/posts/reverse-engineering-source... My understanding is that the mRNA payload codes for specific protein production and the lipid envelope is there to protect the fragile mRNA payload during storage and delivery.