Key points Bronchiolitis Epidemic level: Bronchiolitis activity levels were down in week 51 and continued to remain at a level comparable to last season. The Île-de-France region is on...

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...

Key Points In Week 51 (December 15–21, 2025), the number of emergency department visits and the number of hospitalizations following those visits remained stable across all age...

Key Points In Week 51 (December 15–21, 2025), activity among SOS Médecins associations increased compared to the previous week for those aged 75 and older (+10%, or +666 procedures) and...

Key Points At the national level, the number of deaths from all causes reported by INSEE remains within the usual range of fluctuation in S50-2025 across all age groups. At the...

Key points Bronchiolitis In week 51-2025, the rise in bronchiolitis indicators, which began in week 45-2025, continues in emergency departments. Bronchiolitis accounts for 21% of...

Key Points Low activity in private practice (SOS Médecins) and low activity in hospital-based practice (Oscour®).

Key Points Acute Respiratory Infections In week 51 of 2025, indicators for acute respiratory infections (ARI) showed a marked increase in the community and in hospitals across all age...

Key Points Dengue Over the past two weeks, dengue activity has been low in French Guiana, with 3 confirmed cases (S2025-50 and 51), one from the Savanes sector and two from an...

The COVID-19 testing strategy remains essential, with systematic testing (rapid antigen tests) to account for asymptomatic cases and adapt to the high density of people living in...