Evidence out of Israel is that 40%-60% of the people in the ICU are fully vaxxed. The UK reported a similar number earlier this summer. Since that is a percentage and not a raw number it is hard to tell what it means except that they either don’t work as well as hoped, or not for as long as hoped, or maybe this is that missing 10% in the “90% effective”.
But what it does suggest is that the vaccines are not all the same (Pfizer in Israel, mostly AstraZeneca in the UK) and that they don’t work as well, or as long, as others might. They were talking up boosters since before they sold the first vial so they knew these things were dicey in some ways. Pfizer said this week they intentionally made theirs “weaker” because of side-effect issues but I’d argue it was because the mRNA vaccines never worked in previous tests. In any case, this is from the maker of the only “approved” vaccine!
A one-size fits all, just run out and get jabbed with anything, is a mistake. We should have more data not less. We should have more options not less. And there are still a few honorable people out there - witness the top 2 at the FDA vaccines & biologics division quit in protest over boosters. They know something’s not right. They just aren’t very eager to share what they know.
Immunity is more than antibody specific immunity. There is very little discussion of cellular immunity. Although it appears there is temporary immunity to original strains, I doubt the immunity will be very good as the virus mutates.
The long term effect of repeated MRNA boosters will be a disaster. All that spike protein floating around.