Since last week’s update, and as of 29 November 2023, European Union (EU) and European Economic Area (EEA) countries reported 10 human cases of West Nile virus (WNV) infection. Cases were reported by Italy (9) and France (1). EU-neighboring countries reported no human cases of WNV infection.

This week, among the reporting countries, the following NUTS 3 or GAUL1 regions have reported autochthonous human cases of WNV infection for the first time since the start of this season: Pisa in Italy.

Since the beginning of the 2023 transmission season and as of 29 November 2023, EU/EEA countries have reported 707  human cases of WNV infection in Italy (336), Greece (162, of which 1 with unknown place of infection), Romania (103), France (43), Hungary (29), Spain (17), Germany (6), Croatia (6) and Cyprus (5). EU/EEA countries have reported 67 deaths in Italy (29), Greece (23), Romania (12) and Spain (3). EU-neighboring countries have reported 93 human cases of WNV infection in Serbia (91) and North Macedonia (2) and 2 deaths in Serbia.

During the current transmission season, within the reporting countries, autochthonous human cases of WNV infection were reported from 141 different NUTS 3 or GAUL 1 regions, of which the following regions reported autochthonous human cases of WNV infection for the first time ever: Gironde, Charente-Maritime, Alpes-Maritimes, Charente and Haute-Corse in France, Sömmerda in Germany, Kastoria and Ioannina in Greece, Imperia, Taranto, Lecce, Cosenza, Bari, Salerno and Verbano-Cusio-Ossola in Italy, Gorj and Timiş in Romania, Cáceres, Huelva, Valencia/València, Barcelona and Toledo in Spain.