Key points

Bronchiolitis

• 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

• Pre-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. The indicators are consistent with what has been observed in previous years.