Acute respiratory infections (influenza, bronchiolitis, COVID-19). Bulletin dated December 31, 2025.

Key Points

Acute respiratory infections

  • Activity continues to rise across all age groups.

Influenza

  • Continued increase in influenza indicators across all age groups in the community and in hospitals.

  • Activity at a moderate level in the community and high in hospitals.

  • All French regions are experiencing an epidemic, with the exception of Réunion.

Bronchiolitis

  • The epidemic continues in mainland France and the French West Indies.

  • Decrease in syndromic and virological indicators in the community, and stabilization of the RSV virological indicator in hospitals.

COVID-19

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

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