In this Aug. 6, 2020, file photo, Tannissa Jefferies, a physical education teacher at Saltillo Primary School, helps students arriving on their first day get to their proper hallway as they enter from the carpool line in Saltillo, Miss. As schools reopen around the country, their ability to quickly identify and contain coronavirus outbreaks before they get out of hand is about to be put to the test. (Adam Robison/The Northeast Mississippi Daily Journal via AP, File)

Reopening schools is easy. Keeping them open will be the hard part.

As educators prepare to welcome students back to class for the