Health Monitoring in Brittany. Bulletin of March 21, 2025.

Key Points

Influenza and Flu-Like Illness

  • Post-epidemic activity.

  • Decrease in monitored epidemic indicators. According to the Virology Laboratory at Rennes University Hospital, a decrease in the detection of influenza A virus and stability in the detection of influenza B virus. According to the Virology Laboratory at Brest University Hospital, an increase in the detection of influenza A virus and a decrease in the detection of influenza B virus

Bronchiolitis

  • No epidemic activity.

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

Pneumonia

  • Increase in visits to hospital emergency departments and decrease in calls to SOS Médecins.

  • Utilization remains high among adults.

Gastroenteritis

  • High activity.

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

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