Sep 20, 2021 - Health

More schools using "test-to-stay" strategy to minimize quarantines

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Students sit in a classroom at a high school during the first day of classes in Novi, Mich., on Sept. 7, 2021.

Students sit in a classroom at a high school during the first day of classes in Novi, Mich., on Sept. 7, 2021. Photo: Emily Elconin/Bloomberg via Getty Images

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