Bingo!
It was estimated that between 20%-50% (depending on the study) of the population had pre-existing immunity. This is why we didn't have 2 million people die before October 2020 like some predicted.
Bingo!
It was estimated that between 20%-50% (depending on the study) of the population had pre-existing immunity. This is why we didn't have 2 million people die before October 2020 like some predicted.
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