Health Monitoring in Brittany. Bulletin of April 18, 2025.

Key Points

Acute gastroenteritis

  • High activity.

  • High activity, particularly affecting children.

  • The number of visits to emergency rooms and SOS Médecins clinics is declining, but remains high among those under 15.

Bronchiolitis

  • Non-epidemic activity.

  • Low detection of RSV according to the virology laboratories at Rennes University Hospital and Brest University Hospital.

  • Other viruses capable of causing bronchiolitis are circulating, notably rhinoviruses.

Influenza and influenza-like illness

  • Non-epidemic activity.

  • Detection of influenza A and B viruses according to the virology laboratory at the Brest University Hospital.

  • Detection of influenza A virus but no detection of influenza B virus at the Rennes University Hospital.

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