Physical distancing for reducing and mitigating COVID-19 transmission: A rapid review

Background: Physical distancing is an infection prevention and control (IPC) intervention and public health and social measure (PHSM) aimed at reducing respiratory infections. However, the optimal distance for preventing severe acute respiratory syndrome-related coronavirus 2 (SARS-CoV-2) transmissi...

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Main Authors: Ekpereonne B. Esu, Ehimario U. Igumbor, Anthony T. Okoro, Patience O. Idiege, Kelechi Meremikwu, Angela E. Oyo-Ita, Kathleen A. Dunn, Hannah H. Hurwitz, Martin M. Meremikwu
Format: Article
Language:English
Published: AOSIS 2025-03-01
Series:Journal of Public Health in Africa
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Online Access:https://publichealthinafrica.org/index.php/jphia/article/view/611
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author Ekpereonne B. Esu
Ehimario U. Igumbor
Anthony T. Okoro
Patience O. Idiege
Kelechi Meremikwu
Angela E. Oyo-Ita
Kathleen A. Dunn
Hannah H. Hurwitz
Martin M. Meremikwu
author_facet Ekpereonne B. Esu
Ehimario U. Igumbor
Anthony T. Okoro
Patience O. Idiege
Kelechi Meremikwu
Angela E. Oyo-Ita
Kathleen A. Dunn
Hannah H. Hurwitz
Martin M. Meremikwu
author_sort Ekpereonne B. Esu
collection DOAJ
description Background: Physical distancing is an infection prevention and control (IPC) intervention and public health and social measure (PHSM) aimed at reducing respiratory infections. However, the optimal distance for preventing severe acute respiratory syndrome-related coronavirus 2 (SARS-CoV-2) transmission remains uncertain. Aim: This study aimed to determine whether a distance of 1 m is optimal for reducing SARS-CoV-2 transmission. Setting: Community and healthcare settings. Methods: The Central Register of Controlled Trials, Cochrane Database of Systematic Reviews, PubMed and Embase were searched for studies conducted in community, healthcare and other defined settings between 01 January 2020 and 07 September 2022. The quality of the evidence was assessed with the ROBINS-I tool. This study is registered on PROSPERO (CRD42022355706). Results: One retrospective cohort study enrolled 242 school districts in Massachusetts, United States, which included 537 336 students and 99 390 staff attending in-person instruction between September 2020 and January 2021. No significant differences in SARS-CoV-2 cases were observed among both groups for students (adjusted incidence rate ratio [aIRR]: 0.904; 95% confidence interval [CI]: 0.616–1.325) and staff (aIRR: 1.015; 95% CI: 0.754–1.366). Conclusion: In this sole study, SARS-CoV-2 cases were similar regardless of physical distance (1 metre vs 2 metres), although they studied a limited number of events. Physical distancing was part of a broader set of mitigation measures employed in the study setting; including consistent mask use. Contribution: The effectiveness of physical distancing against SARS-CoV-2 infection is significantly influenced by mask use, thus its impact on physical distancing effectiveness cannot be separated. Further studies are needed to increase the certainty of the evidence.
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institution OA Journals
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2038-9930
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series Journal of Public Health in Africa
spelling doaj-art-877b22a500dc44e5ad3a605c2b6046ed2025-08-20T02:14:03ZengAOSISJournal of Public Health in Africa2038-99222038-99302025-03-01162e1e910.4102/jphia.v16i2.611817Physical distancing for reducing and mitigating COVID-19 transmission: A rapid reviewEkpereonne B. Esu0Ehimario U. Igumbor1Anthony T. Okoro2Patience O. Idiege3Kelechi Meremikwu4Angela E. Oyo-Ita5Kathleen A. Dunn6Hannah H. Hurwitz7Martin M. Meremikwu8Cochrane Nigeria, Institute of Tropical Diseases Research and Prevention, University of Calabar Teaching Hospital, Calabar Department of Public Health, Faculty of Allied Medical Sciences, College of Medical Sciences, University of Calabar, CalabarCentre for Infectious Disease Research, Nigerian Institute of Medical Research, LagosDepartment of Computer Science, University of Calabar, Calabar Cross River Health and Demographic Surveillance System, University of Calabar, CalabarUniversity of Calabar Teaching Hospital, CalabarKeck Medical Center, University of Southern California, Los AngelesCochrane Nigeria, Institute of Tropical Diseases Research and Prevention, University of Calabar Teaching Hospital, Calabar Department of Community Medicine, Faculty of Medicine, College of Medical Sciences, University of Calabar, CalabarWorld Health Organization, Geneva, Switzerland Public Health Agency of Canada, OttawaWorld Health Organization, GenevaDepartment of Paediatrics, College of Medical Sciences, University of Calabar, CalabarBackground: Physical distancing is an infection prevention and control (IPC) intervention and public health and social measure (PHSM) aimed at reducing respiratory infections. However, the optimal distance for preventing severe acute respiratory syndrome-related coronavirus 2 (SARS-CoV-2) transmission remains uncertain. Aim: This study aimed to determine whether a distance of 1 m is optimal for reducing SARS-CoV-2 transmission. Setting: Community and healthcare settings. Methods: The Central Register of Controlled Trials, Cochrane Database of Systematic Reviews, PubMed and Embase were searched for studies conducted in community, healthcare and other defined settings between 01 January 2020 and 07 September 2022. The quality of the evidence was assessed with the ROBINS-I tool. This study is registered on PROSPERO (CRD42022355706). Results: One retrospective cohort study enrolled 242 school districts in Massachusetts, United States, which included 537 336 students and 99 390 staff attending in-person instruction between September 2020 and January 2021. No significant differences in SARS-CoV-2 cases were observed among both groups for students (adjusted incidence rate ratio [aIRR]: 0.904; 95% confidence interval [CI]: 0.616–1.325) and staff (aIRR: 1.015; 95% CI: 0.754–1.366). Conclusion: In this sole study, SARS-CoV-2 cases were similar regardless of physical distance (1 metre vs 2 metres), although they studied a limited number of events. Physical distancing was part of a broader set of mitigation measures employed in the study setting; including consistent mask use. Contribution: The effectiveness of physical distancing against SARS-CoV-2 infection is significantly influenced by mask use, thus its impact on physical distancing effectiveness cannot be separated. Further studies are needed to increase the certainty of the evidence.https://publichealthinafrica.org/index.php/jphia/article/view/611physical distancingsars-cov-2covid-19systematic reviewrapid review
spellingShingle Ekpereonne B. Esu
Ehimario U. Igumbor
Anthony T. Okoro
Patience O. Idiege
Kelechi Meremikwu
Angela E. Oyo-Ita
Kathleen A. Dunn
Hannah H. Hurwitz
Martin M. Meremikwu
Physical distancing for reducing and mitigating COVID-19 transmission: A rapid review
Journal of Public Health in Africa
physical distancing
sars-cov-2
covid-19
systematic review
rapid review
title Physical distancing for reducing and mitigating COVID-19 transmission: A rapid review
title_full Physical distancing for reducing and mitigating COVID-19 transmission: A rapid review
title_fullStr Physical distancing for reducing and mitigating COVID-19 transmission: A rapid review
title_full_unstemmed Physical distancing for reducing and mitigating COVID-19 transmission: A rapid review
title_short Physical distancing for reducing and mitigating COVID-19 transmission: A rapid review
title_sort physical distancing for reducing and mitigating covid 19 transmission a rapid review
topic physical distancing
sars-cov-2
covid-19
systematic review
rapid review
url https://publichealthinafrica.org/index.php/jphia/article/view/611
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