Pfizer was recently downgraded to 39% efficacy after a few months: https://link.springer.com/article/10.1007/s10654-021-00808-7. So unless you'd like IaaS to mean "immunity as a service" and pay Pfizer in perpetuity every 3 months or so, vaccines merely prepare you to tolerate the real thing a little better making this novel virus not so novel. You can't "stop covid" with them, and why the authorities continue to lie about this, I can't even fathom at this point.

Not to put too fine a point on this, but make no mistake, vaccine or no vaccine, you _will_ get COVID. You'll just be 10x less likely to die from it, although that's being called into question as well by now. Be that as it may if you're on the older side and/or obese, you should get vaccinated if you haven't had COVID yet. I did. I've also lost 15 kilos so far, and I don't intend to take any "boosters".