This is the fourth update of a rapid risk assessment originally produced on 9 August 2018. This rapid risk assessment addresses the public health risk associated with the current Ebola virus outbreak in the DRC and its implications for EU/EEA citizens. It was triggered by an increase of EVD transmission in the affected areas over recent weeks, the persistent occurrence of new cases among contacts unknown at the time of EVD diagnosis, the occurrence of a substantial number of cases outside of the ring vaccination contacts and current challenges for the prevention and control of EVD.

In 2017, 42 242 cases of pertussis were reported in EU/EEA countries. Five countries (Germany, the Netherlands, Poland, Spain and the UK) accounted for 76% of all notified cases.

For 2017, 27 countries reported 2 026 travel-associated cases of dengue fever, of which 1 818 (89.7%) were confirmed.