Until early 2022, you had to be pretty unlucky to have had COVID more than once. Reinfections did occur on occasion, of course, but the phenomenon remained relatively rare. Except that in recent months, with the arrival of Omicron and its sub-variants which easily escape antibodies adapted to the previous variants, reinfections are becoming the norm. And the scientific community is wondering: does SARS-CoV-2 get milder and milder as we catch up with it, or does each reinfection add an additional risk of long-term complications?
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