Overview
- All metropolitan regions except La Réunion are in an epidemic phase, with 18,552 emergency visits and 3,606 hospitalizations for influenza in the week ending December 28, according to Santé publique France.
- Severe outcomes are concentrated in older adults, with influenza mentioned in 4.1% of death certificates and about nine in ten of those deaths in people aged 65 and over.
- Community activity is moderate overall, decreasing among children under 15 during school holidays but remaining at high intensity for those 65 and older.
- Institut Pasteur modeling indicates the peak most likely fell in the last week of 2025 or may arrive in early January, though a resurgence later in the season cannot be excluded.
- Regional strain is acute in Nouvelle-Aquitaine, where ER visits for flu jumped 20% to 1,509 in a week and more than a quarter were admitted, as authorities urge vaccination, masking when symptomatic, ventilation and hand hygiene while bronchiolitis continues to burden pediatric units.