Too soon to lift mask mandates for most elementary schools in US, study finds

Before lifting mask mandates in elementary schools in the U.S., local COVID-19 case rates should be far below current rates to avoid the risk of increased transmission among students, staff, and families, according to a study led by researchers at Harvard T.H. Chan School of Public Health and Massachusetts General Hospital (MGH).

source https://medicalxpress.com/news/2022-02-mask-mandates-elementary-schools.html