Key Points

• Decrease in all bronchiolitis surveillance indicators among children under 2 years of age

• Decline in the bronchiolitis outbreak in most regions of mainland France

• End of the outbreak in Île-de-France

• Transition to the post-epidemic phase in Auvergne-Rhône-Alpes, Brittany, Centre-Val de Loire, Grand Est, Hauts-de-France, Occitanie, and French Guiana

• The outbreak continues in Guadeloupe, Martinique, and Mayotte