“The mRNA vaccines delivered efficacy rates of 95 and 94 percent against the original coronavirus strain in Phase 3 trials, as compared with 96 percent for Novavax in its first trial, and now 90 percent against a mixture of variants.”
Doesn’t sound like much difference in efficacy to me...
Similar efficacy but more traditional vaccine science.
With a traditional vaccine it would seem that the worst that could happen is you would get the disease.
With mRNA all sorts of things could happen.