The ongoing outbreak should be carefully monitored, as the establishment of an urban cycle of yellow fever would have the potential to quickly affect a large number of people. EU/EEA citizens who travel to, or live in, areas where there is evidence of yellow fever virus transmission should check their vaccination status and obtain medical advice about being vaccinated against yellow fever.
In Europe, Aedes aegypti
, the primary vector of yellow fever in urban settings, is present in Madeira. Recent studies have shown that Aedes albopictus
can potentially transmit the yellow fever virus. However, the risk of the virus being introduced into local competent vector populations in the EU through viraemic travellers from Brazil is considered to be very low, as the current weather conditions in Europe are not favourable for vector activity.ECDC closely monitors this event in collaboration with the World Health Organization. ECDC published a rapid risk assessment on 26 January 2017 and a rapid risk assessment on yellow fever among travellers returning from South America on 15 March 2017. ECDC is also producing a map for travel advice.