Key Points

A seasonal bronchiolitis outbreak is active in Réunion during week 19 of 2021 (April 10 to May 16), with an increase in cases.

• In week 19 of 2021, among children under 2 years of age:

  • 66 emergency department visits for bronchiolitis, representing 19% of total activity

  • 32 visits for bronchiolitis were followed by hospitalization, representing 47% of these visits

  • 4 out of 10 hospitalizations were for bronchiolitis

• Increase in the number of RSV cases detected at the university hospital