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Moderna tests vaccine for variant first found in South Africa; California's 'variant of concern' spreading: Live COVID-19 updates
Moderna tests vaccine for variant first found in South Africa; California's 'variant of concern' spreading: Live COVID-19 updates
New York City will reopen public schools to middle schoolers, providing in-classroom learning for another 62,000 students. Latest COVID-19 updates.
news.yahoo.com
John Bacon, Jorge L. Ortiz and Elinor Aspegren, USA TODAY...