Health Monitoring in Réunion. Bulletin of August 14, 2025.

Key points

Measles

  • On August 8, a new case of measles was identified in Réunion, bringing the total number of cases identified on the island to two to date. No locally transmitted cases had been identified on the island since 2019.

Chikungunya

  • Low viral circulation with a limited number of affected municipalities and no impact on healthcare utilization.

Dengue

  • The last confirmed local case was identified in week 17, and the last imported case in week 29.

Acute Respiratory Infections (ARI)

  • The flu epidemic remains active, with a predominance of influenza A(H3N2) viruses. Health indicators related to bronchiolitis remain low.

Gastroenteritis

  • Health indicators in hospitals and outpatient settings remain at baseline levels.

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