Deaths, infections, and herd immunity in the COVID-19 pandemic: A comparative study of the strategies for disease containment implemented in Peru and the United Kingdom

Introduction: In light of the threat posed by the COVID-19 pandemic, most countries have implemented several containment and prevention measures to slow down the rapid spread of the disease. Objectives: To compare the COVID-19 pandemic containment strategies implemented in Peru [World Health Organi...

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Main Authors: Jeel Moya-Salazar, Betsy Cañari, Nahomi Zuñiga, Alexis Jaime-Quispe, Victor Rojas-Zumaran, Hans Contreras-Pulache
Format: Article
Language:English
Published: Universidad Nacional de Colombia 2022-04-01
Series:Revista de la Facultad de Medicina
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Online Access:https://revistas.unal.edu.co/index.php/revfacmed/article/view/92823
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author Jeel Moya-Salazar
Betsy Cañari
Nahomi Zuñiga
Alexis Jaime-Quispe
Victor Rojas-Zumaran
Hans Contreras-Pulache
author_facet Jeel Moya-Salazar
Betsy Cañari
Nahomi Zuñiga
Alexis Jaime-Quispe
Victor Rojas-Zumaran
Hans Contreras-Pulache
author_sort Jeel Moya-Salazar
collection DOAJ
description Introduction: In light of the threat posed by the COVID-19 pandemic, most countries have implemented several containment and prevention measures to slow down the rapid spread of the disease. Objectives: To compare the COVID-19 pandemic containment strategies implemented in Peru [World Health Organization (WHO) - confinement and social distancing] and the United Kingdom [herd immunity (HI)] in terms of morbidity and mortality, and to simulate the implementation of HI in Peru during the initial stage of the pandemic. Materials and methods: Exploratory study with a simulation model based on official data obtained from both countries at the beginning of the pandemic. Mortality, case fatality, and infection rates documented within the first 55 days after the first COVID-19 case report in the United Kingdom and the start of the WHO-recommended containment and prevention strategy implementation in Peru were evaluated. Additionally, the impact of applying HI, according to WHO guidelines, as the initial strategy in Peru was simulated. The Paired-samples t-test was used to determine the differences between the two strategies at both stages of the study. Results: During the follow-up period, 15 034 and 33 931 COVID-19 cases were reported in the United Kingdom and Peru, respectively. The case fatality rate was higher in the United Kingdom (7.82% vs. 2.74%), while the cumulative mortality rate was higher in Peru (2.89 vs. 1.74×100 000 inhabitants p=0.0001). Regarding the simulation, a minimum critical population of 60% (>19 million positive cases) was established for Peru to achieve HI, with 1 223 473.1 deaths and a hospitalization rate of 44 770×100 000 patients. Conclusions: During the follow-up period (55 days), the United Kingdom’s strategy resulted in a higher case fatality rate, while the Peruvian strategy in over twice as many COVID-19 cases. The HI simulation strategy in Peru showed a sharp increase in all unfavorable indicators of the pandemic.
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spelling doaj-art-adf5de4ce5be4dc698d1686f6dc039972025-08-20T03:18:43ZengUniversidad Nacional de ColombiaRevista de la Facultad de Medicina0120-00112357-38482022-04-0170210.15446/revfacmed.v70n2.92823Deaths, infections, and herd immunity in the COVID-19 pandemic: A comparative study of the strategies for disease containment implemented in Peru and the United KingdomJeel Moya-Salazar0https://orcid.org/0000-0002-7357-4940Betsy Cañari1https://orcid.org/0000-0002-4526-0848Nahomi Zuñiga2https://orcid.org/0000-0001-9281-3508Alexis Jaime-Quispe3https://orcid.org/0000-0002-3117-3495Victor Rojas-Zumaran4https://orcid.org/0000-0001-9859-684XHans Contreras-Pulache5https://orcid.org/0000-0003-2450-9349Universidad Privada Norbert Wiener – South American Center for Research in Education and Public Health - Lima - Peru. | Universidad Tecnológica del Perú - Faculty of Engineering - Biomedical School - Lima - Peru.Universidad Privada Norbert Wiener – South American Center for Research in Education and Public Health - Lima - Peru.Universidad Privada Norbert Wiener – South American Center for Research in Education and Public Health - Lima - Peru.Universidad Privada Norbert Wiener – South American Center for Research in Education and Public Health - Lima - Peru.Hospital Nacional Docente Madre Niño San Bartolomé - Department of Pathology - Lima - Peru.Universidad Privada Norbert Wiener – South American Center for Research in Education and Public Health - Lima - Peru.Introduction: In light of the threat posed by the COVID-19 pandemic, most countries have implemented several containment and prevention measures to slow down the rapid spread of the disease. Objectives: To compare the COVID-19 pandemic containment strategies implemented in Peru [World Health Organization (WHO) - confinement and social distancing] and the United Kingdom [herd immunity (HI)] in terms of morbidity and mortality, and to simulate the implementation of HI in Peru during the initial stage of the pandemic. Materials and methods: Exploratory study with a simulation model based on official data obtained from both countries at the beginning of the pandemic. Mortality, case fatality, and infection rates documented within the first 55 days after the first COVID-19 case report in the United Kingdom and the start of the WHO-recommended containment and prevention strategy implementation in Peru were evaluated. Additionally, the impact of applying HI, according to WHO guidelines, as the initial strategy in Peru was simulated. The Paired-samples t-test was used to determine the differences between the two strategies at both stages of the study. Results: During the follow-up period, 15 034 and 33 931 COVID-19 cases were reported in the United Kingdom and Peru, respectively. The case fatality rate was higher in the United Kingdom (7.82% vs. 2.74%), while the cumulative mortality rate was higher in Peru (2.89 vs. 1.74×100 000 inhabitants p=0.0001). Regarding the simulation, a minimum critical population of 60% (>19 million positive cases) was established for Peru to achieve HI, with 1 223 473.1 deaths and a hospitalization rate of 44 770×100 000 patients. Conclusions: During the follow-up period (55 days), the United Kingdom’s strategy resulted in a higher case fatality rate, while the Peruvian strategy in over twice as many COVID-19 cases. The HI simulation strategy in Peru showed a sharp increase in all unfavorable indicators of the pandemic. https://revistas.unal.edu.co/index.php/revfacmed/article/view/92823COVID-19SARS-CoV-2PeruUnited KingdomHerd ImmunityMortality
spellingShingle Jeel Moya-Salazar
Betsy Cañari
Nahomi Zuñiga
Alexis Jaime-Quispe
Victor Rojas-Zumaran
Hans Contreras-Pulache
Deaths, infections, and herd immunity in the COVID-19 pandemic: A comparative study of the strategies for disease containment implemented in Peru and the United Kingdom
Revista de la Facultad de Medicina
COVID-19
SARS-CoV-2
Peru
United Kingdom
Herd Immunity
Mortality
title Deaths, infections, and herd immunity in the COVID-19 pandemic: A comparative study of the strategies for disease containment implemented in Peru and the United Kingdom
title_full Deaths, infections, and herd immunity in the COVID-19 pandemic: A comparative study of the strategies for disease containment implemented in Peru and the United Kingdom
title_fullStr Deaths, infections, and herd immunity in the COVID-19 pandemic: A comparative study of the strategies for disease containment implemented in Peru and the United Kingdom
title_full_unstemmed Deaths, infections, and herd immunity in the COVID-19 pandemic: A comparative study of the strategies for disease containment implemented in Peru and the United Kingdom
title_short Deaths, infections, and herd immunity in the COVID-19 pandemic: A comparative study of the strategies for disease containment implemented in Peru and the United Kingdom
title_sort deaths infections and herd immunity in the covid 19 pandemic a comparative study of the strategies for disease containment implemented in peru and the united kingdom
topic COVID-19
SARS-CoV-2
Peru
United Kingdom
Herd Immunity
Mortality
url https://revistas.unal.edu.co/index.php/revfacmed/article/view/92823
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