Prevalence and factors associated with SARS-CoV-2 infection: a serial population-based study in Espírito Santo, Brazil, May to June 2020
Keywords:Coronavirus Infections, COVID-19, Cross-Sectional Studies, Epidemiological Surveys
Objective: To analyze the seroprevalence of SARS-CoV-2 and the association of sociodemographic and clinical aspects in the state of Espírito Santo, Brazil. Methods: Serial cross-sectional study carried out in four phases, using households as the unit of analysis, from May to June 2020. 11 municipalities were surveyed, with a sample of 4,500 households in each phase. Results: the prevalence ranged from 2.1% (95%CI: 1.7;2.5) on May 10 (first stage) to 9.6% (95%CI: 8.8;10.4), on June 21 (fourth stage). In the metropolitan region of Greater Vitória, the prevalences were 2.7% (95%CI: 2.2;3.3), in the first, and 11.5% (95%CI: 10.5;12.6) in the fourth stage; within the state it ranged from 0.4% (95%CI: 0.1;0.9) to 4.4% (95%CI: 3.2;5.5) between the two stages. Conclusion: The increase in SARS-CoV-2 seroprevalence observed in the fourth phase highlighted the high transmission of the virus, supporting the management of the pandemic.
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Copyright (c) 2022 Orlei Amaral Cardoso, Cristiana Costa Gomes, Crispim Cerutti Junior, Ethel Leonor Noia Maciel, Filomena Euridice Carvalho de Alencar, Gilton Luiz Almada, Laylla Ribeiro Macedo, Letícia Tabachi Silva, Nésio Fernandes de Medeiros Junior, Pablo Medeiros Jabor, Raphael Lubiana Zanotti, Tania Reuter, Vera Lucia Gomes de Andrade, Whisllay Maciel Bastos, Eliana Zandonade
This work is licensed under a Creative Commons Attribution 4.0 International License.