Weekly updates: 2020 West Nile virus transmission season
Situation update
Between 21 and 27 August 2020, EU Member States reported 56 human cases of WNV infection: Spain (38), Greece (15) and Italy (three). All cases were reported from areas that have been affected during previous transmission seasons. This week, four deaths were reported by Greece (two) and Spain (two). No human cases of WNV infection or deaths were reported from EU neighbouring countries.
Since the beginning of the 2020 transmission season and as of 27 August 2020, EU Member States have reported 122 human cases of WNV infection and ten deaths through The European Surveillance System (TESSy): Greece (54, including eight deaths), Spain (44, including two deaths), Italy (22), and Romania (two). Spain is currently experiencing an outbreak of WNV infection in the province of Seville. All cases were reported from areas that have been affected during previous transmission seasons. No cases have been reported from EU neighbouring countries.
Since the beginning of the 2020 transmission season, 40 outbreaks among equids have been reported. These outbreaks have been reported by Spain (33, including 23 in the province of Seville), Italy (five), France (one) and Portugal (one) through the Animal Disease Notification System (ADNS) of the European Commission. No outbreaks among birds have been reported through ADNS.
Data from the ECDC surveillance Atlas
Weekly maps
Case definition
EU case definition for diagnosing and reporting West Nile virus infection, under Decision No 2119/98/EC of the European Parliament and of the Council.
ECDC publishes weekly WNV epidemiological updates during the WNV transmission season, including the geographical distribution of human cases in the EU/EEA and EU neighbouring countries. In addition, ECDC includes maps in its epidemiological updates highlighting areas where WNV outbreaks among equids have been reported. Read more