Bronchiolitis, COVID-19, and the flu in the Hauts-de-France region. Update for December 24, 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; this increase is primarily driven by the circulation of influenza viruses.

Bronchiolitis (< 1 year)

  • Fourth week of the epidemic phase

  • Activity decreasing at SOS Médecins and stable in emergency departments. RSV circulation is also stabilizing.

Influenza and influenza-like illnesses

  • Third week of the epidemic phase

  • Activity is increasing in private practice, within the SOS Médecins and Sentinelles networks, as well as in emergency departments; levels are comparable to those observed during the previous season. Increased circulation of influenza viruses.

COVID-19

  • Low activity in emergency departments and at SOS Médecins.

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