Acute respiratory infections (bronchiolitis, COVID-19, influenza) in the Hauts-de-France region. Bulletin dated December 31, 2025.
Key points
Acute lower respiratory tract infections
Significant increase in activity at SOS Médecins and in emergency departments; increase primarily driven by the circulation of influenza viruses.
Bronchiolitis (<1 year)
5th week of the epidemic phase.
Activity is decreasing in emergency departments and stable at SOS Médecins; activity levels remain moderate. The circulation of RSV is also stabilizing.
Influenza and influenza-like illnesses
4th week of the epidemic phase
High and rising activity in private practice within the SOS Médecins and Sentinelles networks as well as in emergency departments; levels comparable to those observed during the previous season. The circulation of influenza viruses continues to increase.
COVID-19
Low and stable activity in emergency departments and at SOS Médecins.
Mortality
All-cause mortality within expected fluctuations; increase in influenza-related deaths recorded via electronic certification
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