NPR News: Why hasn't my daughter caught COVID? 2 factors likely protect her — and maybe you, too

Why hasn't my daughter caught COVID? 2 factors likely protect her — and maybe you, too
My 6-year-old has been exposed to SARS-CoV-2 at least 4 times and never tested positive. Lots of people fall into that category. Researchers have theories about why they've been able to ward it off.

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