COVID-Inconfidentes - SARS-CoV-2 seroprevalence in two Brazilian urban areas during the pandemic first wave: study protocol and initial results
Keywords:Coronavirus Infections, Pandemics, Health Surveys, Epidemiology, COVID-19 Serological Testing
Background: A population study is an important tool that can be used to understand the actual epidemiological scenario of the Covid-19 in different territories, identify its magnitude, understand its transmission dynamics, and its demographic, geographical, and social distribution.
Objective: The aim of this study was to determine the prevalence and dynamics of SARS-CoV-2 infection in the population of two Brazilian cities during the pandemic first wave and subsequent socioeconomic and health effects.
Materials & methods: This paper described the methodological procedures adopted and the prevalence of the SARS-CoV-2 infection in the population. A household survey was conducted between October and December 2020, in two historic cities of Brazil's mining region. Anti-SARS-CoV-2 antibody was detected using the Wondfo® rapid test. The face-to-face interview consisted of administration of a questionnaire containing registration data, sociodemographic and economic variables, living habits, general health condition, mental health, sleep habits, and eating and nutrition.
Results: We evaluated 1,762 residents, of which 764 (43.4%) were in Mariana and 998 (56.6%) in Ouro Preto. For both cities, 51.9% of the interviewees were female, with a predominance of the age range 35 to 59 years old (47.2%). The prevalence of the SARS-CoV-2 infection was 5.5% in all cities, 6.2% in Ouro Preto, and 4.7% in Mariana. The prevalence was similar between cities (P>0.05).
Conclusion: The study was effective in verifying the seroprevalence of infection by the virus and its findings will enable further analyses of the health conditions of the population related to social isolation and the risk of infection with SARS-CoV-2.
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Copyright (c) 2021 Adriana Lucia Meireles, Luciano Garcia Lourenção, Luiz Antônio Alves de Menezes Junior, Hillary Nascimento Coletro, Irene Carolina Sousa Justiniano, Samara Silva de Moura, Amanda Popolino Diniz, Thaís da Silva Sabião, Ana Maria Sampaio Rocha, Aline Priscila Batista, Nara Nunes Lage, Bárbara dos Santos Simões, Carolina Ali Santos, Raquel de Deus Mendonça, Amanda Cristina de Souza Andrade, Keila Furbino Barbosa, Cássio Zumerle Masioli, Júlia Cristina Cardoso Carraro, Mariana Carvalho de Menezes, Renata Cristina Rezende Macedo Nascimento, Leonardo Roever, Waleska Teixeira Caiaffa, George Luiz Lins Machado-Coelho
This work is licensed under a Creative Commons Attribution 4.0 International License.