West Nile virus transmission in Europe: 2019 data


  • Mary Corcoran
  • Univadis Medical News
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Ten European Union (EU) and four EU neighbouring countries reported more than 450 human cases of West Nile virus infections during the 2019 transmission season. 

Data published by the European Centre for Disease Prevention and Control (ECDC) show that as of December 03, 463 human cases of West Nile virus infection including 50 deaths were recorded. 

EU Member States reported 410 cases during the 2019 transmission season, most of which were reported by Greece (223), Romania (66), Italy (53) and Hungary (36). Cases were also reported in Cyprus (16), Bulgaria (5), Austria (4), Germany (4), France (2) and Slovakia (1). Both Germany and Slovakia reported their first autochthonous mosquito-borne West Nile virus infection. 

There were 53 human cases reported in EU neighbouring countries: Serbia (27), Israel (10), Turkey (10) and North Macedonia (6). 

The very first cases in the EU were notified by Greece and Romania in week 29 (15 to 21 July), with the earliest disease onset reported by Greece from week 25 (17 to 23 June). 

The last cases of this transmission season were reported by Italy in week 46 (11 to 17 November). Romania reported the case with the latest date of onset in the EU from week 43 (21 to 27 October).