I really like this line of reasoning. The aspect of it that plays into a question I have is if we get immunity from both the vaccine and the virus - what is th

I really like this line of reasoning. The aspect of it that plays into a question I have is if we get immunity from both the vaccine and the virus - what is the total percentage of population that has had both? Also lots of fear about the variants - seems vaccinated or infected - the new virus can infect… I’m really curious to know whether an updated vaccine is in the works- not just a booster of the same vaccine ?