Key Points The 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...

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Key Points Acute respiratory infections Activity concentrated between November 2 0 2 5 and February 2026, with a moderate peak in the city but a high peak in hospitals, occurring in...

Key Points Chikungunya 100 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...

Key points Smallpox B (Mpox) 8 cases (including 4 imported cases) were reported in Réunion between S05 and S13/2026. Leptospirosis A seasonal resurgence of leptospirosis is...