Just to add that this IS known by authorities who do nothing. The US is the most egregious where CDC has data but never released it for the rates of infection/hospitalization/deaths between the unvaccinated/fully vaccinated/boosted.

The UK and some other countries were publishing this data in full regularly but as soon as it started to provide a further source of proof for the same issues raised here, they stopped publishing the data. That's how we know they know!!