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

ABSTRACT: 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.

SUBMITTER: Klitting R 

PROVIDER: S-EPMC10979529 | biostudies-literature | 2024 Mar

REPOSITORIES: biostudies-literature

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

Klitting Raphaëlle R   Piorkowski Géraldine G   Rousset Dominique D   Cabié André A   Frumence Etienne E   Lagrave Alisé A   Lavergne Anne A   Enfissi Antoine A   Dos Santos George G   Fagour Laurence L   Césaire Raymond R   Jaffar-Bandjee Marie-Christine MC   Traversier Nicolas N   Gérardin Patrick P   Amaral Rayane R   Fournier Lucie L   Leon Lucie L   Dorléans Frédérique F   Vincent Muriel M   Fontaine Albin A   Failloux Anna-Bella AB   Ayhan Nazli N   Pezzi Laura L   Grard Gilda G   Durand Guillaume André GA   de Lamballerie Xavier X  

Euro surveillance : bulletin Europeen sur les maladies transmissibles = European communicable disease bulletin 20240301 13

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 introductio  ...[more]

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