Bronchiolitis, COVID-19, and the flu in the Hauts-de-France region. Update for December 10, 2025.

Key points

Acute lower respiratory infections

  • Increased activity in urban areas at SOS Médecins and within the Sentinelles network, as well as in emergency departments.

Bronchiolitis (< 1 year)

  • Second week of the epidemic phase

  • Activity at SOS Médecins remains elevated at the peak level observed last season. In emergency departments, indicators are also rising. The circulation of RSV continues to increase.

Influenza and influenza-like illnesses

  • Transition into the epidemic phase

  • Activity is rising in primary care (SOS Médecins and Sentinelles networks) and in emergency departments, with an increase in the circulation of influenza viruses. The trend remains very similar to that observed last year.

COVID-19

  • Low activity showing a slight increase among SOS Médecins and in virology data.

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