Information on autochthonous vectorial transmission of dengue in mainland EU/EEA, including location, period, number of cases, virus serotype and mode of transmission.
Chikungunya is not endemic in the EU/EEA and the majority of the cases are travellers infected outside of the EU/EEA. When the environmental conditions are favourable, in areas where Ae. albopictus is established, viraemic travel-related cases may generate a local transmission of the virus as demonstrated by the sporadic events of chikungunya virus transmission since 2007.
This case definition was published in Commission Implementing Decisions (EU) 2018/945 of 22 June 2018 on the communicable diseases and related special health issues to be covered by epidemiological surveillance as well as relevant case definitions.
The European public health and blood authorities responded to the threat posed by West Nile virus to blood safety of blood and blood components by adopting preventive measures which are defined in the EU blood legislation, professional guides of the Council of Europe and the EU WNV blood transfusion preparedness plan. The measures include the deferral of blood donors that have visited or residing in a NUTS 3 area considered to be affected (i.e. with at least one confirmed case).