Search

Following report of cases of locally transmitted dengue infection in the Autonomous Region of Madeira, Portugal, ECDC has produced a rapid risk assessment.

This is the first sustained transmission of dengue in the European Union since the 1920s. Autochthonous transmission is likely to continue until the end of the year when mosquito density will probably decrease.

In early October, nine cases of autochthonous dengue were confirmed in the EU, three in Spain and six in France, in three separate outbreaks. These are the first autochthonous dengue cases in continental EU/EEA Member States that were reported this year.

This update of the risk assessment ‘Dengue outbreak in Réunion, France’ published on 5 July 2018, has been triggered by the significant size of the outbreak and its expected duration, which is anticipated to overlap with high vector activity in the southern EU.

Three autochthonous cases of dengue have been reported in France and Spain. The probability of further local sustained transmission remains very low, both in Spain and in France. Environmental conditions will become progressively less suitable for transmission over the autumn season.