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Coronavirus mutations add new urgency to vaccine rollout

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The race to vaccinate as many Americans as possible is becoming more urgent with new strains of the coronavirus being discovered in more parts of the country. NBC national correspondent Miguel Almaguer reports for TODAY from Los Angeles.

Appearing:Savannah Guthrie
Tags: health, news, Editor's picks, big news, coronavirus, today
S2021 E03 minHighlightNews and InformationDaytime


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