https://www.foxnews.com/us/cdc-recommends-u-s-schools-continue-to-use-masks.amp
Schools in the United States should continue to use masks for the 2020-2021 academic year as all students will not be fully vaccinated, the U.S. Centers for Disease Control and Prevention (CDC) said on Saturday.
The CDC in its latest guidance said all kindergarten through grade 12 schools "should implement and layer prevention strategies and should prioritize universal and correct use of masks and physical distancing."
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The CDC said masks should be worn at all times by all people in school facilities and buses, while maintaining a six foot distance between teachers and students.
PS
CDC updated guidelines
https://www.cdc.gov/coronavirus/2019-ncov/community/schools-childcare/operation-strategy.html
Operational Strategy for K-12 Schools through Phased Prevention
Updated May 15, 2021
Key Points
Evidence suggests that many K-12 schools that have strictly implemented prevention strategies have been able to safely open for in-person instruction and remain open.
CDC’s K-12 operational strategy presents a pathway for schools to provide in-person instruction safely through consistent use of prevention strategies, including universal and correct use of masks and physical distancing.
All schools should implement and layer prevention strategies and should prioritize universal and correct use of masks and physical distancing.
Testing to identify individuals with SARS-CoV-2 infection and vaccination for teachers and staff provide additional layers of COVID-19 protection in schools.