Bronchiolitis, COVID-19, and the flu in the Hauts-de-France region. Update as of October 31, 2025.

Key points

Acute lower respiratory tract infections

  • A slight upward trend in hospitals, with a downward trend at SOS Médecins and among doctors in the Sentinelles network. Activity levels remain low and consistent with seasonal values.

Bronchiolitis (< 1 year)

  • Non-epidemic phase: low activity but increasing in the region’s emergency departments (visits and hospitalizations).

Influenza and influenza-like illnesses

  • Non-epidemic phase: low and stable activity at SOS Médecins and in emergency departments, decreasing among doctors in the Sentinelles network, likely due to school holidays.

COVID-19

  • Activity is decreasing, with trends comparable to the previous season.

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