Health Surveillance in Brittany. Bulletin of November 28, 2025.

Key points

Bronchiolitis

  • Epidemic activity. Sharp increase in emergency room visits and an upward trend in SOS Médecins consultations.

COVID-19

  • Low activity. The associated activity rates (all ages) are similar to those observed in 2024.

Influenza and influenza-like illness

  • Non-epidemic activity. Upward trend in the number of SOS Médecins consultations for influenza and influenza-like illness.

Gastroenteritis

  • Moderate activity.

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