Back to Search Start Over

Phylogenetic Reconstructions Reveal the Circulation of a Novel Dengue Virus-1V Clade and the Persistence of a Dengue Virus-2 III Genotype in Northeast Brazil

Authors :
Hegger Fritsch
Keldenn Moreno
Italo Andrade Barbosa Lima
Cleiton Silva Santos
Bernardo Gratival Gouvea Costa
Breno Lima de Almeida
Ronald Alves dos Santos
Marcos Vinicius Lima de Oliveira Francisco
Maria Paula Souza Sampaio
Maricelia Maia de Lima
Felicidade Mota Pereira
Vagner Fonseca
Stephane Tosta
Joilson Xavier
Carla de Oliveira
Talita Adelino
Arabela Leal e Silva de Mello
Tiago Gräf
Luiz Carlos Junior Alcantara
Marta Giovanetti
Isadora Cristina de Siqueira
Source :
Viruses, Vol 15, Iss 5, p 1073 (2023)
Publication Year :
2023
Publisher :
MDPI AG, 2023.

Abstract

Dengue fever is among the most significant public health concerns in Brazil. To date, the highest number of Dengue notifications in the Americas has been reported in Brazil, with cases accounting for a total number of 3,418,796 reported cases as of mid-December 2022. Furthermore, the northeastern region of Brazil registered the second-highest incidence of Dengue fever in 2022. Due to the alarming epidemiological scenario, in this study, we used a combination of portable whole-genome sequencing, phylodynamic, and epidemiological analyses to reveal a novel DENV-1 genotype V clade and the persistence of DENV-2 genotype III in the region. We further report the presence of non-synonymous mutations associated with non-structural domains, especially the NS2A (non-structural protein 2A), as well as describe synonymous mutations in envelope and membrane proteins, distributed differently between clades. However, the absence of clinical data at the time of collection and notification, as well as the impossibility of monitoring patients in order to observe worsening or death, restricts our possibility of correlating mutational findings with possible clinical prognoses. Together, these results reinforce the crucial role of genomic surveillance to follow the evolution of circulating DENV strains and understand their spread across the region through inter-regional importation events, likely mediated by human mobility, and also the possible impacts on public health and outbreak management.

Details

Language :
English
ISSN :
19994915
Volume :
15
Issue :
5
Database :
Directory of Open Access Journals
Journal :
Viruses
Publication Type :
Academic Journal
Accession number :
edsdoj.7621b5f546794a7bacae065bbb97fa6a
Document Type :
article
Full Text :
https://doi.org/10.3390/v15051073