[penultimatebro]

>We are already seeing this in action--while natural immunity provides very good protection against reinfection with that strain it doesn't do so well against other strains.

Please post some proof to corroborate any of this. I assume you’re talking about COVID strains here?

>Natural immunity isn’t going to happen, we have seen far too many cases of reinfection with different variants.

Again, source desperately needed here. I’m more than willing to change my take but only with hard data, not sweeping generalizations based on a misunderstanding of how natural immunity works.

[LorenPechtel]

I didn't save links, a couple of recent reports:

https://www.medicalnewstoday.com/articles/delta-variant-what...

https://www.cdc.gov/media/releases/2021/s0806-vaccination-pr...

We see a lot of data from Israel because they made a deal with Pfizer early on to trade early access to vaccine for allowing Pfizer access to anonymized health records about vaccination and infection. Thus they have some of the best data around on the effect of the Pfizer shot on a population scale.