Surveillance and updates for chikungunya virus disease
Seasonal surveillance in the EU/EEA for 2025
Update providing weekly overview of the countries and areas where chikungunya virus disease cases have been reported.
Monthly updated overview of the worldwide transmission of chikungunya
Travel-associated cases in the EU/EEA
This page displays the places where reported travel-associated chikungunya cases are likely to have been infected.
Reports
The likelihood of introduction of the virus to continental EU countries through viraemic travellers returning from endemic subtropical and tropical countries is high.
Since 2007, both France and Italy reported autochthonous transmission of chikungunya virus. The report of a cluster of autochthonous chikungunya cases in an area of Europe where Aedes albopictus is established is not unexpected during summer and autumn months when environmental conditions are favourable for increased mosquito abundance and activity.
