MedRx preprint… Breakthrough SARS-CoV-2 infections in 620,000 U.S. Veterans, February 1, 2021 to August 13, 2021

MedRx prerpint… Breakthrough SARS-CoV-2 infections in 620,000 U.S. Veterans, February 1, 2021 to August 13, 2021

here is a summary:

https://www.phi.org/press/breakthro...-shows-declining-covid-19-vaccine-protection/

and the pre-print paper:

https://www.medrxiv.org/content/10.1101/2021.10.13.21264966v1

It is not peer reviewed, but…

 

So, they seem to say roughy a 40% drop in protection against 'any severity', in 6 months.

Presumably, assuming a linear drop (which it doesn't look like to me, it looks more like an sort of exponential type thingy curve) then that would mean only 10% 'any severity' protection remaining after 12 months.

 

here is one of their graphs (for the year 2021)… I wonder what the story is on the J&J (Janssen) vaccine:

 

No, it flattens out as antibody levels reach their equilibrium levels. As for J&J, well, it's a mediocre vaccine...