Key points

Bronchiolitis (children under 1 year of age)

• Progression of the outbreak in week 50 of 2025 (December 8–14)

• Increased activity in emergency departments and SOS Médecins clinics

• Increase in the detection rate of RSV in the laboratories of the three university hospitals

Flu-like illnesses (all ages)

• Progression of the epidemic in week 50 of 2025 (December 8–14)

• Another marked increase in activity in emergency departments and at SOS Médecins clinics

• Significant acceleration in the circulation of influenza viruses

Suspected COVID-19 cases (all ages)

• Very low activity in emergency departments and SOS Médecins clinics

• Low circulation of SARS-CoV-2