Health Surveillance in Brittany. Bulletin of February 21, 2025.

Key points

Bronchiolitis

  • No epidemic activity.

  • Decrease in RSV detection according to the virology laboratories at Rennes University Hospital and Brest University Hospital. Other viruses capable of causing bronchiolitis are circulating, notably rhinoviruses.

  • Maternal vaccination and infant immunization with monoclonal antibodies are two alternative strategies for preventing RSV bronchiolitis.

Influenza and influenza-like illness

  • Decrease in epidemic indicators.

  • Detection of influenza A and influenza B viruses according to the virology laboratories at Rennes University Hospital and Brest University Hospital. Decrease in activity.

Gastroenteritis

  • High activity.

  • Indicators show an increase in the number of emergency room visits and SOS Médecin consultations.

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