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

Key Points

Acute Respiratory Infections (ARI)

  • Activity generally stable across all age groups but increasing among those under 15.

Influenza

  • All indicators remain at baseline levels in all regions except Mayotte, which has been in the pre-epidemic phase since week 44.

Bronchiolitis

  • Syndromic indicators on the rise. Epidemic phase in Île-de-France and Normandy. Pre-epidemic phase in Auvergne-Rhône-Alpes, Brittany, Hauts-de-France, and Pays de la Loire.

COVID-19

  • Syndromic and virological activity is generally decreasing in community settings and hospitals. The indicator in wastewater continues to decline.

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