Dengue in Reunion

Name: Monthly dengue cases in Reunion
License: https://creativecommons.org/licenses/by/4.0/

Country profile for Reunion (Europe): official dengue surveillance data reported to WHO, analysed by the SENTINARA early-warning engine.

Key facts

Reunion reported 294 dengue cases from January to September 2026, +1629.4% compared with the same period of 2025, according to WHO Global Dengue Surveillance.
Deaths reported in 2026 to September: 0 (0 in the same period of 2025).
In 2025, the last full year, Reunion recorded 17 cases and a case fatality rate of 0.000%.
Automatic early-warning analysis is not available because there are fewer than 36 consecutive months of data, too short for seasonal analysis.

Data updated 2026-10-31. Sources: WHO Global Dengue Surveillance; OpenDengue V1.3 (Clarke et al., 2025), doi:10.6084/m9.figshare.24259573; Dinas Kesehatan Kota Semarang; World Bank Open Data; NASA POWER.