Key Points

• The decline in dengue transmission in French Guiana, which began in early March, is accelerating in Week 28, and levels are approaching those observed before the epidemic.

• In Week 28, the trend is sharply downward in the Cayenne Island and Savanes sectors, downward in the West Coast sector, and stable at a low level in the East Interior sector. The epidemic has ended in the Oyapock sector since Week 23 and in the Maroni sector since Week 27.

• The DENV-2 serotype was predominantly identified in Week 28 (80% DEN-2 and 20% DEN-3 among serotyped samples).

• Since January 2023, 22,709 clinically suspected dengue cases, seen in general practice, at health centers (CDPS), or in local hospitals, and 11,343 confirmed cases have been recorded, including 15,792 consultations and 8,560 confirmed cases in 2024.

• The characteristics of the 474 individuals hospitalized during the 2023–2024 period for whom information is available are described on page 4. These data are currently being consolidated.