Prolonged Unplanned School Closures: USA, 2011-2019
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Prolonged unplanned public K-12 school district and individual school closures in the United States from August 1, 2011 – June 30, 2019. Prolonged unplanned school closure is defined as a school closure lasting ≥5 school days, excluding any scheduled days off.
创建时间：
2021-10-28
