Back in the day Dr. Campbell (I think) reported on a small study that looked at persons who had been exposed to the common-cold coronavirus. That study showed previous infection by the common-cold coronavirus provided long-term 80% relative risk reduction for catching SARS2 coronaviruses. (Far better than the official vaccines)
As far as I know, I haven’t been infected with SARS2 and am not vaxed. Maybe a common cold I had in the past was a coronavirus.
Most of us have been exposed to a corona virus.
To push the vax, they claimed it was ‘novel’ and that would mean all of us would have zero prior immunity. And yet, for the PCR, they used as a testing reference, a ‘related corona virus.’
Dr. Yeadon, former Chief of Science for Pfizer’s allergy and infectious diseases wing, said he knew of a ‘clever’ researcher who contacted survivors of the original SARS outbreak. He tested them with SARS again, and they did not become ill, even after all these years (SARS was Nov 2002).
So he tested the same patients with Covid, and they did not become ill - there was enough similarity between SARS and Covid for the body to fight it off. Makes perfect sense that you wouldn’t have to get sick from every variation of corona virus.