Outbreak of travel-associated Legionnaires' disease – Palmanova, Mallorca (Spain), September–October 2017

An increase in Legionnaires’ disease cases is currently being reported in EU travellers returning from Palmanova in Mallorca, Spain. Eighteen cases, one of which was fatal, have been reported, with dates of onset between 11 September 2017 and 7 October 2017. The source of the outbreak has not yet been identified. It is suspected that this is a community outbreak.