Key points

Bronchiolitis

• Post-epidemic activity.

• Decrease in RSV detection according to the Virology Laboratories at Rennes University Hospital and an increase according to the Virology Laboratories at 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

• Epidemic activity.

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

• The fall vaccination campaign against influenza and COVID-19 began on October 15.

Gastroenteritis

• Moderate activity.

• Indicators are consistent with what has been observed in previous years.