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An Examination of SARS-CoV-2 Transmission Based on Classroom Distancing in Schools With Other Preventive Measures in Place-Missouri, January-March 2021. | LitMetric

AI Article Synopsis

  • Classroom layout is crucial for maintaining physical distance in schools to prevent COVID-19 transmission during in-person learning.
  • A study measured and analyzed 90 classrooms in Missouri, assessing distances between students, teachers, and potentially infectious individuals.
  • Results showed that limited physical distancing (less than 6 feet) did not lead to increased COVID-19 transmission among students before the Delta variant surge, suggesting a way to optimize classroom capacity while safely supporting in-person education.

Article Abstract

Objectives: Classroom layout plays a central role in maintaining physical distancing as part of a multicomponent prevention strategy for safe in-person learning during the COVID-19 pandemic. We conducted a school investigation to assess layouts and physical distancing in classroom settings with and without in-school SARS-CoV-2 transmission.

Methods: We assessed, measured, and mapped 90 K-12 (kindergarten through grade 12) classrooms in 3 Missouri public school districts during January-March 2021, prior to widespread prevalence of the Delta variant; distances between students, teachers, and people with COVID-19 and their contacts were analyzed. We used whole-genome sequencing to further evaluate potential transmission events.

Results: The investigation evaluated the classrooms of 34 students and staff members who were potentially infectious with COVID-19 in a classroom. Of 42 close contacts (15 tested) who sat within 3 ft of possibly infectious people, 1 (2%) probable transmission event occurred (from a symptomatic student with a longer exposure period [5 days]); of 122 contacts (23 tested) who sat more than 3 ft away from possibly infectious people with shorter exposure periods, no transmission events occurred.

Conclusions: Reduced student physical distancing is one component of mitigation strategies that can allow for increased classroom capacity and support in-person learning. In the pre-Delta variant period, limited physical distancing (<6 ft) among students in K-12 schools was not associated with increased SARS-CoV-2 transmission.

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Source
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC9357822PMC
http://dx.doi.org/10.1177/00333549221109003DOI Listing

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