Health Surveillance in Hauts-de-France. Bulletin of October 9, 2025.

Key points

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

  • Trend toward an increase in primary care and hospitals, low intensity, and within seasonal ranges.

Bronchiolitis (< 1 year)

  • Low activity, with a slight increase in primary care and hospitals.

Influenza and influenza-like illnesses

  • Low activity, stable trend in hospitals and increasing in primary care.

COVID-19

  • Activity is increasing to a level comparable to the previous season.

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