COVID boosters don’t work for those who have had previous infection by COVID-19.

Well, anyone who has studied the effectiveness of natural immunity post-infection by COVID-19 or has a good understanding of immune function in general could have told you this. There have been numerous published studies showing little to no benefit of vaccination on-top of natural immunity. But here is yet another study which looks specifically at the 4th “booster”. Now there may be plenty of people who refused vaccination, or were not privileged enough to access vaccination and there are even fewer hermits out there who have not yet had COVID so the implications of this paper are far-reaching. And easily summarised – boosters are of no use (and carry significant potential for adverse impacts known and un-known) except for boosting the profits of one of the worlds most rapacious industries.

https://onlinelibrary.wiley.com/doi/epdf/10.1111/eci.14136