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Unused COVID-19 vaccine and Delta variant cause growing concern


Still-unused doses of the Johnson & Johnson vaccine will soon expire as a highly contagious new COVID-19 variant has health officials once again sounding the alarm. NBC national correspondent Miguel Almaguer reports for TODAY.

News and Information Daytime Highlight
Appearing:Savannah Guthrie
Tags: news, Editor's picks, big news, coronavirus, today


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