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Overview of chikungunya viral transmission, French Guiana, 2026

Year: 2026

Type: article

Abstract: In January 2026, French Guiana detected its first confirmed chikungunya case, initiating a second outbreak after the first one which occurred in 2014/15. The expected seroprevalence for 2026 is estimated at 16.2%, with the virus likely spreading eastward from the west of French Guiana. The causative East/Central/South African (ECSA) strain, lacking the vector-adaptive E1-A226V mutation, may reduce transmission risk in mainland France and Europe, but Caribbean Islands remain vulnerable due to the vector's presence.

Source: Eurosurveillance

DOI: 10.2807/1560-7917.es.2026.31.20.2600296

Authors: Marion Petit Sinturel, Dominique Rousset, Antoine Enfissi, Tsiriniaina Ramavoson, Crepin Kezza, Frédéric Jourdain, Félix Djossou, Tiphanie Succo

Institutions: Santé Publique France, Institut Pasteur, Institut Pasteur de la Guyane, Centre hospitalier universitaire de Guyane

Language: English

Topic: Mosquito-borne diseases and control

Subfield: Public Health, Environmental and Occupational Health

Field: Medicine

Domain: Health Sciences

SDG: Good health and well-being

Open Access status: diamond

OpenAlex ID: W7162099676

FWCI:

Cites: 7

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