Key points

Low IRAs

• Stable activity levels for SOS Médecins (primarily related to acute bronchitis and flu-like illnesses) and emergency departments (primarily related to acute pneumonia) during week 10-2026 (March 2–8)

Bronchiolitis (children under one year of age)

• End of the epidemic declared in week 10 of 2026 (March 2–8)

• Peak activity for bronchiolitis in week 50 of 2025 (December 8–14) for emergency departments and in week 51 (December 15–21) for SOS Médecins associations

• Maximum RSV detection rate in week 02-2026 in private laboratories

Influenza and influenza-like illnesses (all ages)

• End of the epidemic reported in week 08-2026 (February 16–22)

• Peak activity for influenza-like illnesses in week 51-2025 (December 15–21) for SOS Médecins associations and in week 52 (December 22–28) for emergency departments

• Maximum detection rate of influenza viruses in week 51-2025 in private laboratories and in week 01-2026 (December 29, 2025, to January 4, 2026) in university hospitals