Why do you think 5 or 10 years are important metrics? Why not 40 or 60 years?
Most vaccines take 10-15 years to develop, so that should probably be my target, but I'm willing to take on some extra risk.
I've tried. I have not found any hard data from sources I would trust. I've found lots of opinions penned by people I have no reason to trust.
Anyone who doubts the safety of this new immune system programming is obviously either a science denier or a paid [insert foreign country] shill.