Molecular epidemiology identifies the expansion of the DENV2 epidemic lineage from the French Caribbean Islands to French Guiana and mainland France, 2023 to 2024

Publié le 28 mars 2024
Mis à jour le 3 avril 2024

In 2023, dengue virus serotype 2 (DENV2) affected most French overseas territories. In the French Caribbean Islands, viral circulation continues with > 30,000 suspected infections by March 2024. Genome sequence analysis reveals that the epidemic lineage in the French Caribbean islands has also become established in French Guiana but not Réunion. It has moreover seeded autochthonous circulation events in mainland France. To guide prevention of further inter-territorial spread and DENV introduction in non-endemic settings, continued molecular surveillance and mosquito control are essential.

Auteur : Klitting Raphaëlle, Piorkowski Géraldine, Rousset Dominique, Cabié André, Frumence Etienne, Lagrave Alisé, Lavergne Anne, Enfissi Antoine, Dos Santos George, Fagour Laurence, Césaire Raymond, Jaffar-Bandjee Marie-Christine, Traversier Nicolas, Gérardin Patrick, Amaral Rayane, Fournier Lucie, Leon Lucie, Dorléans Frédérique, Vincent Muriel, Fontaine Albin, Failloux Anna-Bella, Ayhan Nazli, Pezzi Laura, Grard Gilda, Durand Guillaume André, de Lamballerie Xavier
Eurosurveillance, 2024, vol. 29, n°. 13, p. 2-7