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Seroprevalence and factors associated with SARS-CoV-2 infection among education workers after the first wave: the first cross-sectional study in Brazil
BACKGROUND: The school community was heavily impacted by the Covid-19 pandemic, especially with the long time of school closures. This study aimed to analyze the seroprevalence of SARS-CoV-2 antibodies and possible factors associated with seropositivity for COVID-19 in teachers and other school staf...
Autores principales: | , , , , , , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Sociedade Brasileira de Medicina Tropical - SBMT
2022
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9070070/ https://www.ncbi.nlm.nih.gov/pubmed/35522813 http://dx.doi.org/10.1590/0037-8682-0606-2021 |
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author | França, Pâmela de Castro Silva, Paulo Goberlânio Barros Rocha, Jose Lima de Carvalho Perdigão, Anne Carolinne Bezerra de Oliveira, Nayara Santos Araújo, Fernanda Montenegro de Carvalho Fonseca, Marcela Helena Gambim Lima, Giovanna Rolim Pinheiro de Almeida, Magda Moura Alencar, Carlos Henrique de Oliveira, Wanderson Kleber Cavalcanti, Luciano Pamplona de Góes |
author_facet | França, Pâmela de Castro Silva, Paulo Goberlânio Barros Rocha, Jose Lima de Carvalho Perdigão, Anne Carolinne Bezerra de Oliveira, Nayara Santos Araújo, Fernanda Montenegro de Carvalho Fonseca, Marcela Helena Gambim Lima, Giovanna Rolim Pinheiro de Almeida, Magda Moura Alencar, Carlos Henrique de Oliveira, Wanderson Kleber Cavalcanti, Luciano Pamplona de Góes |
author_sort | França, Pâmela de Castro |
collection | PubMed |
description | BACKGROUND: The school community was heavily impacted by the Covid-19 pandemic, especially with the long time of school closures. This study aimed to analyze the seroprevalence of SARS-CoV-2 antibodies and possible factors associated with seropositivity for COVID-19 in teachers and other school staff, and to estimate the fraction of asymptomatic individuals by sex and age group. METHODS: We conducted a serological survey of SARS-CoV-2 infections. An analytical cross-sectional study was conducted in Fortaleza, Brazil. Teachers and other staff members from pre-schools to universities of higher education to were investigated. RESULTS: A total of 1,901 professionals participated in the study, of which 1,021 were staff and 880 were teachers. The seroprevalence of SARS-CoV-2 was 8.0% (152/1901). In the seropositive group, 48.3% were asymptomatic. There was a predominance of women (68.4%); and, 47.1% of the participants were between 31 and 45 years old. There was an increase in prevalence with increasing age. An inverse relationship was found for education level: more professionals with less education tested positive for COVID-19. The presence of an infected person living in the same household was significantly associated with positive results for COVID-19 among the professionals. CONCLUSIONS: This is the first study to report the seroprevalence of IgG against SARS-CoV-2 in Brazilian educational staff after the first wave of the disease. In this study, the seroprevalence was much lower than that in the general population. During school reopening, a small fraction of school workers showed serologically detectable signs of SARS-CoV-2 exposure. |
format | Online Article Text |
id | pubmed-9070070 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2022 |
publisher | Sociedade Brasileira de Medicina Tropical - SBMT |
record_format | MEDLINE/PubMed |
spelling | pubmed-90700702022-05-13 Seroprevalence and factors associated with SARS-CoV-2 infection among education workers after the first wave: the first cross-sectional study in Brazil França, Pâmela de Castro Silva, Paulo Goberlânio Barros Rocha, Jose Lima de Carvalho Perdigão, Anne Carolinne Bezerra de Oliveira, Nayara Santos Araújo, Fernanda Montenegro de Carvalho Fonseca, Marcela Helena Gambim Lima, Giovanna Rolim Pinheiro de Almeida, Magda Moura Alencar, Carlos Henrique de Oliveira, Wanderson Kleber Cavalcanti, Luciano Pamplona de Góes Rev Soc Bras Med Trop Major Article BACKGROUND: The school community was heavily impacted by the Covid-19 pandemic, especially with the long time of school closures. This study aimed to analyze the seroprevalence of SARS-CoV-2 antibodies and possible factors associated with seropositivity for COVID-19 in teachers and other school staff, and to estimate the fraction of asymptomatic individuals by sex and age group. METHODS: We conducted a serological survey of SARS-CoV-2 infections. An analytical cross-sectional study was conducted in Fortaleza, Brazil. Teachers and other staff members from pre-schools to universities of higher education to were investigated. RESULTS: A total of 1,901 professionals participated in the study, of which 1,021 were staff and 880 were teachers. The seroprevalence of SARS-CoV-2 was 8.0% (152/1901). In the seropositive group, 48.3% were asymptomatic. There was a predominance of women (68.4%); and, 47.1% of the participants were between 31 and 45 years old. There was an increase in prevalence with increasing age. An inverse relationship was found for education level: more professionals with less education tested positive for COVID-19. The presence of an infected person living in the same household was significantly associated with positive results for COVID-19 among the professionals. CONCLUSIONS: This is the first study to report the seroprevalence of IgG against SARS-CoV-2 in Brazilian educational staff after the first wave of the disease. In this study, the seroprevalence was much lower than that in the general population. During school reopening, a small fraction of school workers showed serologically detectable signs of SARS-CoV-2 exposure. Sociedade Brasileira de Medicina Tropical - SBMT 2022-04-29 /pmc/articles/PMC9070070/ /pubmed/35522813 http://dx.doi.org/10.1590/0037-8682-0606-2021 Text en https://creativecommons.org/licenses/by/4.0/This is an open-access article distributed under the terms of the Creative Commons Attribution License |
spellingShingle | Major Article França, Pâmela de Castro Silva, Paulo Goberlânio Barros Rocha, Jose Lima de Carvalho Perdigão, Anne Carolinne Bezerra de Oliveira, Nayara Santos Araújo, Fernanda Montenegro de Carvalho Fonseca, Marcela Helena Gambim Lima, Giovanna Rolim Pinheiro de Almeida, Magda Moura Alencar, Carlos Henrique de Oliveira, Wanderson Kleber Cavalcanti, Luciano Pamplona de Góes Seroprevalence and factors associated with SARS-CoV-2 infection among education workers after the first wave: the first cross-sectional study in Brazil |
title | Seroprevalence and factors associated with SARS-CoV-2 infection among education workers after the first wave: the first cross-sectional study in Brazil |
title_full | Seroprevalence and factors associated with SARS-CoV-2 infection among education workers after the first wave: the first cross-sectional study in Brazil |
title_fullStr | Seroprevalence and factors associated with SARS-CoV-2 infection among education workers after the first wave: the first cross-sectional study in Brazil |
title_full_unstemmed | Seroprevalence and factors associated with SARS-CoV-2 infection among education workers after the first wave: the first cross-sectional study in Brazil |
title_short | Seroprevalence and factors associated with SARS-CoV-2 infection among education workers after the first wave: the first cross-sectional study in Brazil |
title_sort | seroprevalence and factors associated with sars-cov-2 infection among education workers after the first wave: the first cross-sectional study in brazil |
topic | Major Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9070070/ https://www.ncbi.nlm.nih.gov/pubmed/35522813 http://dx.doi.org/10.1590/0037-8682-0606-2021 |
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