French Guiana Chikungunya Epidemic Slows Across Multiple Sectors
Health officials in French Guiana have recorded 2,017 biologically confirmed cases of chikungunya since the first detection of the virus in late January 2026, according to public health surveillance reports. Santé publique France reported that viral transmission patterns vary significantly across the territory’s seven monitoring sectors as the outbreak enters its autumn phase.
Western Littoral Enters Post-Epidemic Phase
The epidemic on the Western Littoral has officially ended following several weeks of declining virus circulation and low emergency room activity. Santé publique France reported that the sector transitioned to a post-epidemic phase during week 38. While clinicians continue to diagnose sporadic cases in the area, authorities emphasize that vigilance must remain high because regional resurgence cannot be ruled out.
Kourou Sector Stabilizes While Cayenne Maintains Active Foci
In the Savanes sector, emergency room visits at the Kourou hospital for suspected chikungunya remained stable during week 39, with virus-related patient volume dropping below six percent. Following a two-week slowdown, viral circulation in Kourou has stabilized, and the epidemic continues. Meanwhile, the Cayenne Island sector recorded two active foci across two municipalities during week 39. Officials note that due to missing laboratory data transmissions, the current case numbers are likely underestimated while the sector remains in an epidemic focus phase.
Sporadic Transmission and Ongoing Epidemiological Watch
Viral activity has slowed considerably in other regions of the territory. The Maroni sector recorded no new biologically confirmed cases during week 39, placing the area in a phase of sporadic transmission. Similarly, the Interior, Eastern Interior, and Oyapock sectors reported zero new confirmed cases for the same week, leaving these inland areas under standard epidemiological surveillance watch.
When Did the Chikungunya Outbreak Begin in French Guiana?
When did the chikungunya outbreak begin in French Guiana?
The first confirmed case of chikungunya in French Guiana was detected in late January 2026 during week 4.
How many total cases have been confirmed?
Health authorities have registered 2,017 biologically confirmed cases of the virus across the territory since the outbreak started.
Which sectors are still experiencing active epidemics?
The epidemic continues in the Savanes sector around Kourou, while Cayenne Island maintains active disease foci under ongoing public health monitoring.
Santé Publique France Schedules Upcoming Epidemiological Bulletins
Santé publique France tracks regional arbovirus transmission on a weekly basis, with upcoming epidemiological bulletins scheduled to release consolidated laboratory data for weeks 38 and 39.
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