Prevalência e fatores associados à infecção por SARS-CoV-2: estudo de  base populacional seriado, no Espírito Santo, em maio-junho/2020.

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

doi:10.1590/S2237-96222022000200023

##article.authors##

Orlei Amaral Cardoso Secretaria de Estado da Saúde do Espírito Santo
Cristiana Costa Gomes Secretaria de Estado da Saúde do Espírito Santo https://orcid.org/0000-0003-3301-6052
Crispim Cerutti Junior Universidade Federal do Espírito Santo https://orcid.org/0000-0002-9485-4191
Ethel Leonor Noia Maciel Universidade Federal do Espírito Santo https://orcid.org/0000-0003-4826-3355
Filomena Euridice Carvalho de Alencar Universidade Federal do Espírito Santo https://orcid.org/0000-0003-2689-4893
Gilton Luiz Almada Secretaria de Estado da Saúde do Espírito Santo https://orcid.org/0000-0002-0319-1151
Laylla Ribeiro Macedo Universidade Federal do Espírito Santo
Letícia Tabachi Silva Instituto Jones dos Santos Neves https://orcid.org/0000-0003-4658-1456
Nésio Fernandes de Medeiros Junior Secretaria de Estado da Saúde do Espírito Santo
Pablo Medeiros Jabor Instituto Jones dos Santos Neves
Raphael Lubiana Zanotti Secretaria de Estado da Saúde do Espírito Santo
Tania Reuter Universidade Federal do Espírito Santo https://orcid.org/0000-0003-2176-5603
Vera Lucia Gomes de Andrade Secretaria de Estado da Saúde do Espírito Santo https://orcid.org/0000-0002-4105-8685
Whisllay Maciel Bastos Secretaria de Estado da Saúde do Tocantins https://orcid.org/0000-0001-9776-8988
Eliana Zandonade Universidade Federal do Espírito Santo

DOI:

https://doi.org/10.1590/S2237-96222022000200023

Keywords:

Coronavirus Infections, COVID-19, Cross-Sectional Studies, Epidemiological Surveys

Abstract

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.