Health Surveillance in Réunion. Bulletin of April 24, 2025.

Key Points

Chikungunya

  • A major, widespread outbreak is currently underway. To date, the outbreak has stabilized at a high level of transmission across the island, with disparities between the north and south.

Dengue

  • A cluster of 5 cases has been identified in the Bretagne/Sainte-Clotilde area, calling for vigilance given weather conditions that remain conducive to viral circulation.

Leptospirosis

  • A seasonal resurgence is underway, with nearly half of the cases occurring in the southern part of the island.

Acute respiratory infections

  • Indicators in community practice and hospitals have remained at low levels with no public health impact for several weeks.

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