Herd immunity would be a good idea, but the problem with that is that people who have caught it once, have managed to catch it again.
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I read an article a few days ago that the EARLY Covid, the one that struck China and spread to Europe, then here, MUTATED and by March it was the "New Covid." Maybe the ones catching it "again" were actually infected by Covid #1, then caught Covid #2.
Either that or we don't build an immunity to this one.