“does this wear off at some point in time and your immune system return to normal?”
How would anyone even know the answer to that? The “vaccine” hasn’t been dispensed for even a year yet. Too many unknowns. I did read that if a pregnant woman got one of the “vaccines” (not sure which one), it could negatively impact the child’s immune system. But again, how would anyone know? It’s too new.
I’d consider the shot IF it gets officially approved by the FDA, and not before 2025 under any circumstances.
Regarding the question as to the permanency of the vaccine’s override:
Seems to me to be a basic question that developers of a vaccine would have to know before they inoculate the world.