Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
| Type of mRNA vaccine | Mechanism of action | Comments |
| Conventional | Genes encode only for the target antigen | The antigen expression is only transient, so the immune response generated is weaker |
| Amplifying | Genes encoding the RNA are intact but instead if structural proteins, the genes encode for the target antigen | Higher antigen expression, although delayed effect. The immune response elicited lasts longer |
