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West Nile virus infection

2021 transmission season

During the West Nile virus infection transmission season from June to November, ECDC publishes weekly updates each Friday.

See the weekly updates

Interactive dashboard: West Nile virus transmission

Get the latest data on West Nile virus transmission in EU/EEA and EU-neighbouring countries throughout the 2021 season via ECDC's new interactive dashboard. 

See the dashboard

Zoonoses in 2019

This report of the EFSA and ECDC presents the results of zoonoses monitoring activities carried out in 2019 in 36 European countries (28 Member States (MS) and eight non-MS).

Read the latest zoonoses report

Latest outputs

Publication

Communicable disease threats report, 6 - 12 June 2021, week 23

Publication -

Publication

West Nile virus infection - Annual Epidemiological Report for 2019

Surveillance report -

Publication

The European Union One Health 2019 Zoonoses Report

Surveillance report -

News

Campylobacter and Salmonella cases stable in the EU

News story -

Data

West Nile virus in Europe in 2021 - human cases, updated 10 June 2021

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Data

West Nile virus in Europe in 2021 - outbreaks among equids and/or birds, updated 10 June 2021

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Data

West Nile virus in Europe in 2021 - human cases compared to previous seasons, updated 10 June 2021

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Data

West Nile virus in Europe in 2021 - infections among humans and outbreaks among equids and/or birds, updated 10 June 2021

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Peer-Reviewed Publication

West Nile virus keeps on moving up in Europe

Nov 2020

Peer-Reviewed Publication

West Nile virus in Europe: After action reviews of preparedness and response to the 2018 transmission season in Italy, Slovenia, Serbia and Greece

May 2020

Peer-Reviewed Publication

Enhancing Preparedness for Arbovirus Infections with a One Health Approach: The Development and Implementation of Multisectoral Risk Assessment Exercises

Apr 2020

Peer-Reviewed Publication

Early start of the West Nile fever transmission season 2018 in Europe

Aug 2018

Facts

West Nile virus is a mosquito-borne flavivirus that is maintained in an enzootic cycle between mosquitoes and birds. Humans are accidental hosts.

Threats and outbreaks

Surveillance and disease data

Prevention and control

The best protection against mosquito-borne diseases is preventing mosquito bites. Control measures include strengthening mosquito surveillance in areas in Europe at risk of importation of mosquitoes and virus transmission.

Related diseases

Disease / public health area

Chikungunya virus disease

Disease / public health area

Dengue

Disease / public health area

Japanese encephalitis

Disease networks

Emerging Viral Diseases-Expert Laboratory Network (EVD-LabNet)

European network for medical and veterinary entomology (VectorNet)

Infographic

Mosquito-borne diseases: An emerging threat

What are emerging/tropical mosquito-borne diseases? What are the different species of mosquitoes in Europe and the diseases they can carry?