Acute respiratory infections (influenza, bronchiolitis, COVID-19). Bulletin dated December 24, 2025.

Key Points

Acute respiratory infections (ARI)

  • Activity continues to rise across all age groups.

Influenza

  • Flu indicators continue to rise across all age groups. Moderate activity in both the community and hospitals. All French regions are experiencing an epidemic, except for Réunion, which entered the pre-epidemic phase in week 51.

Bronchiolitis

  • The epidemic continues in mainland France and the French West Indies. Syndromic indicators are beginning to decline in the community, but all virological indicators are increasing.

COVID-19

  • Syndromic indicators are generally stable and at low levels. The SARS-CoV-2 monitoring indicator in wastewater is stable.

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