Health Monitoring in Réunion. Bulletin of August 1, 2025.

Key Points

Whooping Cough

  • Sustained bacterial circulation during the first half of 2025.

Measles

  • After no local transmission since 2019, 1 locally acquired case was identified in a 23-month-old child. Considering the diagnosis when symptoms are suggestive and reporting any clinical suspicion to the ARS are crucial for implementing prevention and management measures.

Chikungunya

  • Viral transmission continues to decline, with viral circulation limited to certain municipalities and no significant impact on healthcare utilization.

Dengue

  • The last confirmed locally acquired case was identified in week 17, and the last imported case in week 25.

Acute Respiratory Infections (ARI)

  • The flu epidemic is still ongoing, with a predominance of influenza A(H3N2) viruses. Health indicators related to bronchiolitis are rising moderately.

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