We have aggregate medical data on folks who have been vaccinated and not vaccinated en masse on national levels. We're not in the "controlled study" phase anymore where we need samples to extrapolate onto larger populations. We already have the larger populations.

If there were a recent analysis that looked at all of the population of France for example and showed that vaccinated individuals were more likely to contract Covid again than folks who had contracted Covid before but without vaccination, that would be noteworthy. (And it would have to be relative infection rates, not absolute numbers since the vaccinated far outnumber the unvaccinated at this point in any country would could get reliable data from.)

I'm sorry, but this study doesn't register for me. It strikes me as one of the one-off studies that antivaxxers latch onto to promote and agenda rather than find insight. I feel the same about studies that trickle in linking vaccination to autism. It simply doesn't comport with what the majority of medical analysis indicates. And that's normal. There are always one-offs. But those one-offs get a lot of publicity from folks with an axe to grind rather than those who honestly want to improve public health.