> New research looks at the effects of repeated Covid infections and finds pretty much what you would expect: you not only do not get any kind of superimmunity, you increase your risk of long-term consequences, hospitalization and death. The worse news is that this holds true regardless of vaccination status.
Note that vaccination reduces risk of infection and boosters improve that also, so I expect that being unvaccinated and unmasked is still the greatest factor in such situations.