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Johnson & Johnson announces single-shot COVID-19 vaccine

CLIP01/29/21
Also available on the nbc app

Johnson & Johnson announced Friday that its single-dose COVID-19 vaccine is 66% effective overall in its prevention of moderate to severe disease and 72% effective in the U.S.

Appearing:Savannah Guthrie
Tags: health, news, Editor's picks, big news, today
S2021 E04 minHighlightNews and InformationDaytime
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