Absences in Seminole Independent School District, a school system that served students at the heart of the outbreak, climbed 41% across all grade levels compared with the same period the two previous years, according to the Stanford University study.
“The costs of that absenteeism are just not among the sick kids, but all the kids who are kept out of school as a precaution,” said Thomas Dee, a Stanford economist and education professor who co-authored the study.
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