West Nile fever

2018 transmission season: human cases exceed the total number in previous seven years

In the 2018 transmission season a higher number of cases were reported compared with transmission seasons in previous years. The total number of reported autochthonous infections in 2018 (n= 2 083) exceeds, by far, the total number from the previous seven years (n= 1 832).Compared to the previous transmission season in 2017, there was a 7.2-fold increase. The highest increase compared to the previous transmission season was observed in Bulgaria (15-fold) followed by France (13.5-fold) and Italy (10.9).

The last case of this transmission season in the EU was reported by France at the end of November. As no new cases with disease onset in the previous four weeks have been reported, this is the final weekly update for the 2018 transmission season. Read epidemiological update for West Nile virus transmission season in Europe, 2018

Last updated: 14 December 2018

Number of WNV infections in EU/EEA and EU enlargement countries by epidemiological week of notification*, 2014-2018.
Number of WNV infections in EU/EEA and EU enlargement countries by epidemiological week of notification, 2014-2018.
1 503 cases
reported in 11 EU countries
181 deaths
in EU countries, up to 14 December
No new cases
in the past 4 weeks

Latest updates

Publication

Communicable disease threats report, 9-15 December 2018, week 50

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Data

West Nile virus outbreaks among equids in the European Union, 2018 transmission season

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Data

West Nile fever in Europe in 2018 - human cases compared to previous seasons, updated 13 December

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Data

West Nile fever in Europe in 2018 - equine cases; updated 13 December 2018

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Publication

Communicable disease threats report, 9-15 December 2018, week 50

publication -

Publication

Communicable disease threats report, 2-8 December 2018, week 49

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Publication

Communicable disease threats report, 25 November-1 December 2018, Week 48

surveillance report -

Publication

Communicable Disease Threats Report, 18-24 November 2018, week 47

surveillance report -

News

Epidemiological update: West Nile virus transmission season in Europe, 2018

epidemiological update -

News

Epidemiological update: West Nile fever in Europe - Number of infections so far exceeds the total number in the previous five years

epidemiological update -

News

Unusual early start of the West Nile fever season and rise in cases: ECDC assessment

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News

West Nile fever monitoring: First cases reported in EU for 2018 season

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Mar 2018

Event

Expert consultation meeting on West Nile virus maps

15 Mar 2018 - 16 Mar 2018
Vienna, Austria
Dec 2015

Event

ECDC Regional meeting on West Nile fever real time surveillance and exchange of good practices on vector-borne diseases

2 Dec 2015 - 3 Dec 2015
Belgrade, Serbia
Oct 2014

Event

Joint Meeting of the EFSA Animal Health and Welfare Network and the ECDC Emerging and Vector-borne Disease Network on West Nile fever virus surveillance in the European Union

30 Oct 2014 - 31 Oct 2014

News

World Health Day 2014: focusing on vector-borne diseases in Europe

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Data

West Nile fever in Europe in 2018 - human and equine cases; updated 13 December

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Data

West Nile virus outbreaks among equids in the European Union, 2018 transmission season

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Data

West Nile fever in Europe in 2018 - human cases compared to previous seasons, updated 13 December

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Data

West Nile fever in Europe in 2018 - equine cases; updated 13 December 2018

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Disease programmes and networks

Emerging and Vector-borne Diseases Programme

European network for sharing data on the geographic distribution of arthropod vectors, transmitting human and animal disease agents (VectorNet)

Peer-reviewed publications

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