Key Points

• Number of imported cases documented during enhanced surveillance in 2024

  • 568 Dengue

  • 12 Chikungunya

  • 3 Zika

  • 1 Co-infection (dengue + chikungunya)

• First case of locally transmitted chikungunya detected in Île-de-France

• Dengue epidemic in the Caribbean responsible for more than 50% of dengue cases

• Particularly high number of dengue cases imported from Sub-Saharan Africa

• 68% of Île-de-France residents live in a Parisian municipality or arrondissement colonized by the Aedes albopictus mosquito