The Centers for Disease Control and Prevention published three reports that provide evidence that masking can help cut transmission of coronavirus within schools.

Because the data was limited to so few counties and because it reflected all pediatric cases — and not just those of school-age children — the agency said “the results may not be generalizable.” Still, the agency said, “School mask requirements, along with other prevention strategies, including COVID-19 vaccination, are critical to reducing the spread of COVID-19 in schools.”

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