A Huge Covid-19 Natural Experiment Is Underway—in Classrooms

As K-12 students head back to school, epidemiologists are watching for clues about how kids spread the virus, and what can stop it.

A Huge Covid-19 Natural Experiment Is Underway—in Classrooms
As K-12 students head back to school, epidemiologists are watching for clues about how kids spread the virus, and what can stop it.
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