We also don't know what the adverse reactions to this one are likely to be. mRNA vaccines are very new, and they've never been approved for human use before. If

We also don't know what the adverse reactions to this one are likely to be. mRNA vaccines are very new, and they've never been approved for human use before. If there are long-term adverse side effects, we don't know what they are. > Given the novel nature of the mechanism of action of RNA vaccines, and their drug delivery vehicles, little is known about the medium and longer-term side effects. > Up until December 2020, no mRNA vaccine, drug, or technology platform, had ever been approved for use in humans, and before 2020, mRNA was only considered a theoretical or experimental candidate for use in humans. https://en.wikipedia.org/wiki/RNA_vaccines https://en.wikipedia.org/wiki/RNA_vaccines