If so why did millions die?
Fair question. The doctor tells us that each successive activation of the permanent immune cells could further cause reactivation of the subset of immune cells that see our blood vessels as the enemy.
So just give it a few more COVID or cold causing corona hits and lets see what happens. Not every cold is a coronavirus, as well.
Autoimmune disorders are the effective issue, here. The vaccine made own cells produce the antigen. It may prove nothing.
They did, but covid, or flu, was secondary, so it was the same amount as usual