Health Surveillance in Hauts-de-France. Bulletin of October 16, 2025.

Key points

Lower respiratory tract infections (acute lower respiratory tract infections, all etiologies)

  • Trend remains stable in hospitals, decreasing at SOS Médecins, and increasing in the Sentinelles Network, but intensity levels remain low and within seasonal ranges.

Bronchiolitis (< 1 year)

  • Non-epidemic phase: low activity but slightly increasing in hospitals.

Influenza and influenza-like illnesses

  • Non-epidemic phase: low activity, stable trend in hospitals and at SOS Médecins, but slightly increasing in the Sentinelles Network.

COVID-19

  • Activity decreasing to a level comparable to the previous season.

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