![In this Nov. 5, 2020, file photo, custodial workers clean a classroom at an elementary school in Missouri. On Feb. 9, 2021, the Montgomery County [Md.] board of education voted to bring students back into classrooms starting March 1. (Colter Peterson/St. Louis Post-Dispatch via AP, File) **FILE**](https://twt-thumbs-staging.washtimes.com/media-staging.washtimes.com/media/image/2020/11/12/virus_outbreak_us_surge_40557_s878x599.jpg?6509c121012a30b44e954568dc26a70a816febd8)
In this Nov. 5, 2020, file photo, custodial workers clean a classroom at an elementary school in Missouri. On Feb. 9, 2021, the Montgomery County [Md.] board of education voted to bring students back into classrooms starting March 1. (Colter Peterson/St. Louis Post-Dispatch via AP, File) **FILE**
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