Health Surveillance in Brittany. Bulletin of February 27, 2026.
Key points
Bronchiolitis (under 1 year of age)
Activity outside of an epidemic. Increase in hospital emergency room visits and a slight increase in SOS Médecins consultations. Virology laboratories at the region’s university hospitals report low detection of RSV. Other viruses capable of causing bronchiolitis are circulating, notably rhinoviruses.
COVID-19
Low activity.
Influenza and influenza-like illness
Post-epidemic activity. Decrease in the number of emergency room visits and SOS Médecins consultations for influenza and influenza-like illness. Decrease in the detection of influenza A virus according to data from the Virology Laboratory at Rennes University Hospital and an increase in detection according to the Virology Laboratory at Brest University Hospital.
Gastroenteritis
High activity. Decrease in emergency room visits and SOS Médecins consultations across all age groups.
Pneumonia
Stable number of emergency room visits and SOS Médecins consultations for pneumonia.
Asthma
High activity. Decrease in emergency room visits and increase in SOS Médecins consultations, all ages.
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