“We know with every new exposure to SARS-CoV-2 we are more likely to suffer adverse effects.
A massive study in the US found that the risk of brain, nerve, heart, lung, blood, kidney, insulin & muscular disorders accumulates with every reinfection” https://www.theguardian.com/commentisfree/2023/jan/26/covid-roulette-clean-air-ventilation-long-covid