Bronchiolitis, COVID-19, and the flu in the Hauts-de-France region. Update as of March 18, 2026.

Key Points

Lower Respiratory Tract Infections

  • Activity continues to decline in emergency departments (visits and hospitalizations following visits) and at SOS Médecins. Incidence rates measured by the Sentinelles network are also decreasing. Activity levels are low.

Bronchiolitis (< 1 year)

  • No alert

  • Activity in the SOS Médecins network decreased, while activity recorded in emergency departments (visits and hospitalizations) fluctuated within the ranges observed in previous seasons.

Influenza and influenza-like illnesses

  • No alert

  • A general decline in all surveillance indicators—SOS Médecins, the Sentinelles network, and emergency departments—with activity levels now low across mainland France.

COVID-19

  • Activity remained low and stable in emergency departments and at SOS Médecins.

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