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​​Since 5 June, ECDC has published on its website weekly updates on spatial distribution of West Nile fever cases in the European Union and neighbouring countries. Cases reported in the EU were autochthonous human WN fever cases (neuro-invasive and non neuro-invasive), meeting laboratory criteria as per EU case definition (Directive 2008/426/EC) and all reported cases outside the EU.

​The West Nile virus transmission period in the EU is drawing to a close. No recent cases have been reported since 31 October in European countries, and active mosquito populations are decreasing. ECDC is therefore ending its seasonal monitoring of the West Nile virus transmission.

​Since the 5 June 2015, ECDC has published on its website an interactive atlas presenting weekly updates on spatial distribution of West Nile fever human cases in the European Union and neighbouring countries.

​The first West Nile fever cases in the EU have been reported, during the past week, in two countries - Italy and Romania.

In 2016, 225 human cases of West Nile fever have been reported in the EU: most cases were reported in Romania and Italy, Hungary and Romania reported a significant increase in number of cases compared to the previous season. Cyprus detected its ever first human case of West Nile fever.