Key PointsThe 2026 seasonal surge has reached a high level (142 cases to date). The number of cases occurring in March exceeds the highest monthly total recorded since surveillance began...

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Key PointsAcute respiratory infectionsActivity concentrated between November 2025 and February 2026, with a moderate peak in the city but a high peak in hospitals, occurring in late 2025...

Key PointsChikungunya100 cases of chikungunya were reported in Week 15 in Mayotte, representing a 24% decrease compared to Week 14 (130 cases) (unconsolidated data), with the virus still...

Key pointsSmallpox B (Mpox)8 cases (including 4 imported cases) were reported in Réunion between S05 and S13/2026.LeptospirosisA seasonal resurgence of leptospirosis is currently...