Rapid risk assessment: Increase of Legionnaires’ disease in EU travellers returning from Dubai since October 2016

ECDC observed a significant increase in the number of cases of travel-associated Legionnaires’ disease (TALD) in EU travellers returning from Dubai during the period October 2016 to May 2017 that could not be accounted for by the increase in travel patterns from the EU. The return to the baseline level of TALD in the most recent two months suggests that the measures implemented by UAE have been effective in containing this outbreak.