RE: Proff Richard Tedder - antibody tests12 Dec 2021 20:08
Don’t know if this has already been posted - apologies if so.
https://www.medrxiv.org/content/10.1101/2021.12.08.21267353v1.full
It’s a research paper published 8/12, funded by the DHSC and the Welsh Govt, and authored by top academics including Peto and Bell.
“ In summary, prior infection significantly boosts antibody responses after a single ChAdOx1, BNT162b2, or mRNA-1273 vaccination, producing higher peak levels and longer half-lives, comparable or even better to that obtained from two vaccinations in those without prior infection. Based on the positivity threshold and previously reported correlates of protection, those with prior infection could be protected from infection for >1 year after a single vaccination. While recent studies show that a third vaccination boosts antibody responses31 and provides better protection against infection than two vaccinations,32 and two vaccinations plus prior infection provides better protection against re-infection than prior infection alone,8 a large part of the global population did not yet have the chance to get their first vaccination due to limited vaccine supplies. These results could inform vaccine strategies, providing an evidence-base to optimise population immunity in the context of resource limitations, while international SARS-CoV-2 immunisation programmes are scaled up and secured.”
Put another way, vaccination programs in poorer countries could be optimised by understanding prior infection and targeting vaccine measures accordingly. ABDX and ODX have been saying this for ages, and here we now have a research paper with serious academic clout back it up.