During the 2023 West Nile virus transmission season, and as of 4 January 2024, 709 locally acquired human cases of West Nile virus infection, including 67 deaths, were reported by nine European Union countries.
As of 4 January 2024, 728 human cases of West Nile virus infection were reported, of which 709 were locally acquired and 19 were travel-associated. In 2023, seven EU countries reported 153 outbreaks among equids and eight EU countries reported 251 outbreaks among birds.
Distribution of human West Nile virus infections in NUTS 3 or GAUL 1 regions of the EU/EEA and neighbouring countries during 2013-2023, as of 4th January.
Distribution of human and animal West Nile virus infections in NUTS 3 or GAUL 1 regions of the EU/EEA and neighbouring countries during the 2023 season, as of 4th January.
Arenaviruses are a type of small virus commonly found in rodents. When a person becomes infected with an arenavirus, symptoms usually begin within 10 days.
For 2021, 26 European Union/European Economic Area (EU/EEA) countries reported data on Crimean-Congo haemorrhagic fever (CCHF) and only one country reported any cases.
The EVD-LabNet is strengthening capacity for early detection and surveillance of (re)emerging viral diseases in the EU/EEA countries and EU Candidate Countries.
This issue of the ECDC Communicable Disease Threats Report (CDTR) covers the period 10-16 December 2023 and includes updates on measles, chikungunya, dengue, SARS-CoV-2, diphtheria, West Nile virus, respiratory virus epidemiology and influenza.