I think I’ve read that a J&J primary vaccination plus an mRNA booster gives you a slightly broader spectrum of T-Cell coverage. I know the adenovirus vector’s DNA is the same DNA sequence transcribed from the mRNA and used to create the spike proteins, so is there any truth to this?
I already did this (JJ + Pfizer), so there aren’t any decisions hinging on the answer. I am more or less just curious.