You bring up an interesting point.
Of course, there’s no science out there to explain the “science”, but my take on this mRNA vaccination method is that it is supposed to be both rapid to develop and cheap to produce and distribute. The “spike” sequence RNA has to be isolated, and the techniques are already understood for that, as the current vaccine demonstrates. I expect that mRNA production is simple chemically driven RNA replication, so no biologicals in production — cheap and rapid to get into production. The lipid encapsualization and other components of making an injectable are the same for any mRNA.
So, when does a Delta vaccine show up? That ought to give us a pretty good clue as to how long this first vaccine actually took to develop, if it cannot be done rapidly.
If it’s fast, as I think it should be 2nd time around, then get Delta out there, now. Target Delta and try to drive this back to the original strain as dominant. The already vaxed and recovered should be well protected.
In my humble opinion , Trump may have saved the US from a economic collapse with the rapid development of the vaccines .
The vaccines showed there would be an endgame in sight .
Yes they were rushed , and likely producing side effects .