You can’t compare developing countries that barely test anyone with Portugal which has strong and robust testing. Likely that tons of infections get untested so to prove that vaccine don’t work just because some other country with lower vaccination has less cases makes absolutely no sense. Any epidemiologist knows that and this is why this garbage analysis.

What you do is that you compare within the same country where conditions are similar. It’s the same everywhere, virus spread more and leads to more deaths and hospital cases among the unvaccinated.