More US schools require mask as COVID cases rise

More US schools institute mask mandates as COVID cases rise More schools -- including in Massachusetts and Michigan -- are implementing mask mandates as COVID-19 cases rise across the country. ABC News ABC News

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Before winter break, districts in New Jersey and Pennsylvania announced they would temporarily be requiring masks among students and staff members amid a surge of respiratory illnesses.

Now schools in Massachusetts and Michigan are following suit while Chicago schools are asking students to take rapid tests before classes start.

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