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https://www.arca.fiocruz.br/handle/icict/63189
RESURGENCE OF DENGUE VIRUS SEROTYPE 3 IN MINAS GERAIS, BRAZIL: A CASE REPORT
Author
Affilliation
Fundação Ezequiel Dias. Belo Horizonte, MG, Brazil.
Fundação Ezequiel Dias. Belo Horizonte, MG, Brazil.
Fundação Ezequiel Dias. Belo Horizonte, MG, Brazil.
Fundação Oswaldo Cruz. Instituto René Rachou. Belo Horizonte, MG, Brazil.
Department of Exact and Earth Science. University of the State of Bahia. Salvador BA, Brazil / Climate Amplified Diseases and Epidemics. Brasilia, DF, Brazil.
Fundação Ezequiel Dias. Belo Horizonte, MG, Brazil.
Fundação Ezequiel Dias. Belo Horizonte, MG, Brazil.
Prefeitura de Belo Horizonte. Secretaria Municipal de Saúde. Belo Horizonte, MG, Brazil.
Fundação Oswaldo Cruz, Instituto René Rachou. Belo Horizonte, MG, Brazil / Climate Amplified Diseases and Epidemics. Brasilia, DF, Brazil.
Fundação Ezequiel Dias. Belo Horizonte, MG, Brazil.
Fundação Oswaldo Cruz, Instituto René Rachou. Belo Horizonte, MG, Brazil / Climate Amplified Diseases and Epidemics. Brasilia, DF, Brazil / Sciences and Technologies for Sustainable Development and One Health. Università Campus Bio-Medico di Roma.Roma, Italy.
Fundação Ezequiel Dias. Belo Horizonte, MG, Brazil.
Fundação Ezequiel Dias. Belo Horizonte, MG, Brazil.
Fundação Oswaldo Cruz. Instituto René Rachou. Belo Horizonte, MG, Brazil.
Department of Exact and Earth Science. University of the State of Bahia. Salvador BA, Brazil / Climate Amplified Diseases and Epidemics. Brasilia, DF, Brazil.
Fundação Ezequiel Dias. Belo Horizonte, MG, Brazil.
Fundação Ezequiel Dias. Belo Horizonte, MG, Brazil.
Prefeitura de Belo Horizonte. Secretaria Municipal de Saúde. Belo Horizonte, MG, Brazil.
Fundação Oswaldo Cruz, Instituto René Rachou. Belo Horizonte, MG, Brazil / Climate Amplified Diseases and Epidemics. Brasilia, DF, Brazil.
Fundação Ezequiel Dias. Belo Horizonte, MG, Brazil.
Fundação Oswaldo Cruz, Instituto René Rachou. Belo Horizonte, MG, Brazil / Climate Amplified Diseases and Epidemics. Brasilia, DF, Brazil / Sciences and Technologies for Sustainable Development and One Health. Università Campus Bio-Medico di Roma.Roma, Italy.
Abstract
This report provides a detailed overview of the resurgence of DENV-3 in the state of Minas Gerais, Brazil, which is a concerning scenario in the context of dengue, a mosquito-borne viral disease. Historically, Brazil has grappled with dengue epidemics caused primarily by the DENV-1 and DENV-2 serotypes. However, in 2023, a significant shift in this pattern was observed as DENV-3 made a notable resurgence. This resurgence was characterized by the increase in DENV-3 cases within the country and the region of the Americas. Given the absence of sustained DENV-3 circulation in Brazil in previous years, this situation poses a significant risk, making the population highly susceptible to a potential novel epidemic. In November 2023, a 31-year-old male patient in Belo Horizonte exhibited symptoms of acute febrile syndrome. Multiplex RT-qPCR using the Kit Molecular ZC D-Tipagem confirmed DENV-3 infection, suggesting a likely autochthonous case, as the patient reported no travel history. To promptly assess this resurgence, we applied the nanopore sequencing technology. This allowed for the rapid characterization of the initial DENV-3 case isolated in Minas Gerais in 2023, representing a 13-year interval since the serotype’s previous documented circulation in that state. This case report underscores the critical importance of proactive monitoring and the swift implementation of targeted control strategies to address the evolving dynamics of dengue, with a specific emphasis on the resurgence of DENV-3 in the state.
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