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  • Epidemiological and genomic features of chikungunya virus disease in travellers returning from Cuba, September 2025 to January 2026: a GeoSentinel analysis
Epidemiological and genomic features of chikungunya virus disease in travellers returning from Cuba, September 2025 to January 2026: a GeoSentinel analysis

Epidemiological and genomic features of chikungunya virus disease in travellers returning from Cuba, September 2025 to January 2026: a GeoSentinel analysis

Lead Author: Marta Díaz-Menéndez

Journal

Euro Surveillance : Bulletin Europeen Sur Les Maladies Transmissibles = European Communicable Disease Bulletin, 31(16)

DOI

https://doi.org/10.2807/1560-7917.ES.2026.31.16.2600286

Abstract

During September 2025-January 2026, 111 travellers (61 female/50 male; median age: 53 years) who acquired chikungunya virus (CHIKV) in Cuba were reported to GeoSentinel. Upon return, 64.2% (70/109) were potentially viraemic. Only 8.2% (9/98) had received pre-travel consultations. The CHIKV was of East-Central-South Africa genotype, closely related to Brazilian strains. International travellers can serve as arboviral outbreak sentinels and, if viraemic, risk introducing CHIKV into areas with established Aedes spp. vectors. Their effective surveillance can trigger adequate public health responses.