Surveillance and updates for West Nile virus infection
The first weekly report of 2026 was published on 29 May 2026, and the first monthly report of 2026 will be published on 1 July 2026.
Weekly updates: Seasonal surveillance in humans in 2026
Weekly updates with the latest reports on West Nile virus cases in Europe, updated every Friday, during the transmission season.
Monthly updates: Seasonal surveillance in humans and animals in 2026
Monthly updates with the latest reports on West Nile virus cases in Europe..
Historical data on local transmission in Europe
Historical data for the West Nile virus surveillance is available by year, since 2011.
The ECDC updates are based on available data reported through the European Surveillance System (TESSy) by the national public health authorities of EU/EEA countries.