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.

In relation to

Our latest news

news

10 years of commitment and action in the service of public health

news

Call for Applications for the Renewal of the Editorial Board of the Weekly...

news

Launch of the “Heating, Health, Buildings, and Urban Planning” Network:...