Health Monitoring in Brittany. Bulletin of March 17, 2026.
Key points
Bronchiolitis (under 1 year of age)
Non-epidemic activity. Decrease in hospital emergency room visits and SOS Médecins consultations. Virology laboratories at the region’s university hospitals report low detection rates of RSV. Other viruses capable of causing bronchiolitis are circulating, notably rhinoviruses.
COVID-19
Low activity.
Influenza and influenza-like illness
Non-epidemic activity. Decrease in the number of emergency room visits and SOS Médecins consultations for influenza and influenza-like illness across all age groups. Low detection of influenza A virus according to data from the virology laboratories at the Rennes University Hospital and the Brest University Hospital.
Gastroenteritis
High activity. Increase in emergency room visits and decrease in SOS Médecins consultations across all age groups.
Pneumonia
Decrease in emergency room visits and stable SOS Médecins consultations for pneumonia.
Allergies
Increase in the number of SOS Médecins consultations.
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