Skip to Main content Skip to Navigation
Journal articles

Molecular Characterization of Dengue Type 2 Outbreak in Pacific Islands Countries and Territories, 2017–2020

Abstract : Dengue virus (DENV) serotype-2 was detected in the South Pacific region in 2014 for the first time in 15 years. In 2016-2020, DENV-2 re-emerged in French Polynesia, Vanuatu, Wallis and Futuna, and New Caledonia, co-circulating with and later replacing DENV-1. In this context, epidemiological and molecular evolution data are paramount to decipher the diffusion route of this DENV-2 in the South Pacific region. In the current work, the E gene from 23 DENV-2 serum samples collected in Vanuatu, Fiji, Wallis and Futuna, and New Caledonia was sequenced. Both maximum likelihood and Bayesian phylogenetic analyses were performed. While all DENV-2 strains sequenced belong to the Cosmopolitan genotype, phylogenetic analysis suggests at least three different DENV-2 introductions in the South Pacific between 2017 and 2020. Strains retrieved in these Pacific Islands Countries and Territories (PICTs) in 2017-2020 are phylogenetically related, with strong phylogenetic links between strains retrieved from French PICTs. These phylogenetic data substantiate epidemiological data of the DENV-2 diffusion pattern between these countries.
Complete list of metadata

https://hal-riip.archives-ouvertes.fr/pasteur-03039686
Contributor : Noé Ochida <>
Submitted on : Friday, December 4, 2020 - 5:48:54 AM
Last modification on : Monday, December 14, 2020 - 5:38:12 PM
Long-term archiving on: : Friday, March 5, 2021 - 6:12:11 PM

File

viruses-12-01081-v2.pdf
Publication funded by an institution

Licence


Distributed under a Creative Commons Attribution 4.0 International License

Identifiers

Citation

Catherine Inizan, Olivia O'Connor, George Worwor, Talica Cabemaiwai, Jean-Claude Grignon, et al.. Molecular Characterization of Dengue Type 2 Outbreak in Pacific Islands Countries and Territories, 2017–2020. Viruses, MDPI, 2020, 12 (10), pp.1081. ⟨10.3390/v12101081⟩. ⟨pasteur-03039686⟩

Share

Metrics

Record views

65

Files downloads

114