A small-but-growing body of research suggests the highly-contagious delta variant raises your risk of serious illness, but it’s tough to know for sure if it's the root cause of more severe COVID-19, both researchers and outside experts say.
A small-but-growing body of research suggests the highly-contagious delta variant raises your risk of serious illness, but it’s tough to know for sure if it's the root cause of more severe COVID-19, both researchers and outside experts say.
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