Key Points

Chikungunya, dengue, and Zika

• The chikungunya outbreaks in Réunion (and more broadly in the Indian Ocean) and the dengue outbreaks in Guadeloupe are having a significant impact on surveillance in mainland France.

• In Corsica, since May 1, one imported case of chikungunya has been confirmed as of May 27 (no new cases).

Heat Wave

• The surveillance and prevention system for heat-related health effects begins on June 1.