Key points

Bronchiolitis (children under 1 year of age)

• Progression of the epidemic in week 49-2025 (December 1–7)

• Continued increase in activity in emergency departments

• Increase in the detection rate of RSV

Flu-like illnesses (all ages)

• Progression of the epidemic in week 49-2025 (December 1–7)

• Marked increase in activity in emergency departments and at SOS Médecins clinics

• Acceleration in the circulation of influenza viruses

Suspected COVID-19 cases (all ages)

• Very low activity in emergency departments and at SOS Médecins clinics (activity level below 0.4% since early November 2025)

• Low circulation of SARS-CoV-2