Travel-associated chikungunya virus disease in EU/EEA countries imported from Seychelles. As of June 2026, several EU/EEA countries reported fewer imported chikungunya cases, compared with the period November 2025 to April 2026, with the most recent symptom onset occurring in mid-May. The environmental conditions in most areas of the EU/EEA where Ae. albopictus or Ae. aegypti, the vectors of chikungunya virus are established, are now favourable for mosquito activity and virus replication in mosquitoes; therefore, locally acquired chikungunya virus disease cases may occur in the coming weeks following introduction of the virus by viraemic travellers returning from affected areas. Travellers should be advised to apply mosquito bite prevention measures. Vaccination may be considered in accordance with national recommendations.
Communicated by the European Centre for Disease Prevention and Control
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Travel-associated chikungunya virus disease in EU/EEA countries imported from Seychelles. As of June 2026, several EU/EEA countries reported fewer imported chikungunya cases, compared with the period November 2025 to April 2026, with the most recent symptom onset occurring in mid-May. The environmental conditions in most areas of the EU/EEA where Ae. albopictus or Ae. aegypti, the vectors of chikungunya virus are established, are now favourable for mosquito activity and virus replication in mosquitoes; therefore, locally acquired chikungunya virus disease cases may occur in the coming weeks following introduction of the virus by viraemic travellers returning from affected areas. Travellers should be advised to apply mosquito bite prevention measures. Vaccination may be considered in accordance with national recommendations.
Communicated by the European Centre for Disease Prevention and Control