Non Exclusive: MEXICO CITY, MEXICO - AUGUST 20: Workers begin preparatives for the beginning of the gradual return to the classrooms, The Secretary of

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Non Exclusive: MEXICO CITY, MEXICO - AUGUST 20: Workers begin preparatives for the beginning of the gradual return to the classrooms, The Secretary of Public Education (SEP) announced the new measures for students who return at schools in person amid Covid-19 variant Delta. On August 20, 2021 in Mexico City, Mexico.

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Keywords: class, classrooms, coronavirus, covid-19, education, face, gradual, pandemic, public, return, school, sep, situation