Breakthrough COVID-19 Infections Are Rare, But Delta Poses Risks To Vaccinated People
Breakthrough COVID-19 infections are still quite rare, but scientists are now learning more about the risks posed by the delta variant to people who are vaccinated.
Read more on NPR
Breakthrough COVID-19 infections are still quite rare, but scientists are now learning more about the risks posed by the delta variant to people who are vaccinated.
Read more on NPR
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