Assessing classroom and laboratory spread of COVID-19 in a university after elimination of physical distancing.

The objective of this study was to assess COVID-19 classroom transmission in the university setting when physical distancing was eliminated. Data was collected in fall 2021 at a private university. Universal masking, robust contact tracing, vaccination requirement, and enforced testing were in place...

Full description

Bibliographic Details
Main Authors: Terri Rebmann, Travis M Loux, Ashley Gomel, Kaeli A Lugo, Firas Bafageeh, Haley Elkins, Lauren D Arnold
Format: Article
Language:English
Published: Public Library of Science (PLoS) 2023-01-01
Series:PLoS ONE
Online Access:https://doi.org/10.1371/journal.pone.0283050
_version_ 1797843158781919232
author Terri Rebmann
Travis M Loux
Ashley Gomel
Kaeli A Lugo
Firas Bafageeh
Haley Elkins
Lauren D Arnold
author_facet Terri Rebmann
Travis M Loux
Ashley Gomel
Kaeli A Lugo
Firas Bafageeh
Haley Elkins
Lauren D Arnold
author_sort Terri Rebmann
collection DOAJ
description The objective of this study was to assess COVID-19 classroom transmission in the university setting when physical distancing was eliminated. Data was collected in fall 2021 at a private university. Universal masking, robust contact tracing, vaccination requirement, and enforced testing were in place. Exposures were classified as classroom versus non-classroom. ANOVA and chi-squared tests were used to identify significant relationships between predictors and COVID-19 test result. Logistic regression was conducted to investigate the relationship between exposure type and test result. A total of 162 student cases were identified with 1,658 associated close contacts. One-third of contacts (31.1%, n = 516) only had a non-classroom exposure, 63.8% (n = 1,057) only had a classroom exposure, and 5.1% (n = 85) had both. Close contacts were significantly more likely to test positive if they had a non-classroom exposure (60 of 601; 10.0%) compared to a classroom exposure (1 of 1057; 0.1%) (OR 58.8, CI 18.5-333.3, p < 0.001). Removing physical distancing in classrooms that had universal masking did not result in high rates of COVID-19 transmission. This has policy implications because eliminating physical distancing does not greatly increase transmission risk when universal masking is in place.
first_indexed 2024-04-09T17:00:16Z
format Article
id doaj.art-218b718e0b274f6b890fe8a6c517f255
institution Directory Open Access Journal
issn 1932-6203
language English
last_indexed 2024-04-09T17:00:16Z
publishDate 2023-01-01
publisher Public Library of Science (PLoS)
record_format Article
series PLoS ONE
spelling doaj.art-218b718e0b274f6b890fe8a6c517f2552023-04-21T05:32:56ZengPublic Library of Science (PLoS)PLoS ONE1932-62032023-01-01183e028305010.1371/journal.pone.0283050Assessing classroom and laboratory spread of COVID-19 in a university after elimination of physical distancing.Terri RebmannTravis M LouxAshley GomelKaeli A LugoFiras BafageehHaley ElkinsLauren D ArnoldThe objective of this study was to assess COVID-19 classroom transmission in the university setting when physical distancing was eliminated. Data was collected in fall 2021 at a private university. Universal masking, robust contact tracing, vaccination requirement, and enforced testing were in place. Exposures were classified as classroom versus non-classroom. ANOVA and chi-squared tests were used to identify significant relationships between predictors and COVID-19 test result. Logistic regression was conducted to investigate the relationship between exposure type and test result. A total of 162 student cases were identified with 1,658 associated close contacts. One-third of contacts (31.1%, n = 516) only had a non-classroom exposure, 63.8% (n = 1,057) only had a classroom exposure, and 5.1% (n = 85) had both. Close contacts were significantly more likely to test positive if they had a non-classroom exposure (60 of 601; 10.0%) compared to a classroom exposure (1 of 1057; 0.1%) (OR 58.8, CI 18.5-333.3, p < 0.001). Removing physical distancing in classrooms that had universal masking did not result in high rates of COVID-19 transmission. This has policy implications because eliminating physical distancing does not greatly increase transmission risk when universal masking is in place.https://doi.org/10.1371/journal.pone.0283050
spellingShingle Terri Rebmann
Travis M Loux
Ashley Gomel
Kaeli A Lugo
Firas Bafageeh
Haley Elkins
Lauren D Arnold
Assessing classroom and laboratory spread of COVID-19 in a university after elimination of physical distancing.
PLoS ONE
title Assessing classroom and laboratory spread of COVID-19 in a university after elimination of physical distancing.
title_full Assessing classroom and laboratory spread of COVID-19 in a university after elimination of physical distancing.
title_fullStr Assessing classroom and laboratory spread of COVID-19 in a university after elimination of physical distancing.
title_full_unstemmed Assessing classroom and laboratory spread of COVID-19 in a university after elimination of physical distancing.
title_short Assessing classroom and laboratory spread of COVID-19 in a university after elimination of physical distancing.
title_sort assessing classroom and laboratory spread of covid 19 in a university after elimination of physical distancing
url https://doi.org/10.1371/journal.pone.0283050
work_keys_str_mv AT terrirebmann assessingclassroomandlaboratoryspreadofcovid19inauniversityaftereliminationofphysicaldistancing
AT travismloux assessingclassroomandlaboratoryspreadofcovid19inauniversityaftereliminationofphysicaldistancing
AT ashleygomel assessingclassroomandlaboratoryspreadofcovid19inauniversityaftereliminationofphysicaldistancing
AT kaelialugo assessingclassroomandlaboratoryspreadofcovid19inauniversityaftereliminationofphysicaldistancing
AT firasbafageeh assessingclassroomandlaboratoryspreadofcovid19inauniversityaftereliminationofphysicaldistancing
AT haleyelkins assessingclassroomandlaboratoryspreadofcovid19inauniversityaftereliminationofphysicaldistancing
AT laurendarnold assessingclassroomandlaboratoryspreadofcovid19inauniversityaftereliminationofphysicaldistancing