During the 2011 West Nile fever transmission season, 21 June - 25 November, ECDC has been publishing on its website weekly updates on the spatial distribution of West Nile fever cases in the European Union and neighbouring countries. Cases reported in the EU were confirmed cases according to the EU case definition and all reported cases outside the EU.
The weekly report provided timely information about the number of reported cases of West Niles virus (WNV) infection in humans. The information was provided by EU Member States and bordering countries and was updated on a weekly basis, every Friday. The data refers to autochthonous human cases of WNV infection only.
ECDC published its last weekly update of the WN fever maps on Friday, 25 November, and closed its seasonal monitoring of West Nile virus transmission for 2011. Read a summary of West Nile virus transmission season in Europe
About the weekly update on cases of West Nile fever in Europe
MAPS
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The following colour codes are used: |
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Red |
Areas reporting West Nile fever cases |
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Dark grey |
Areas not reporting West Nile fever cases |
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Light grey |
Areas outside the scope of this map |
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Reported cases of West Nile fever map, for the EU and neighbouring countries
Transmission season 2011: 21/06 - 24/11/2011; Latest update: 13/01/2012 |
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Since 21 June, ECDC has published on its website weekly updates on spatial distribution of West Nile fever cases in the European Union and neighbouring countries. In the EU, the last cases occurred in October, in Hungary, Italy (week 40) and Greece (week 42). In the neighbouring countries, the last cases occurred in November, in the Russian Federation and Israel. Thus, the transmission season is over. However, ECDC is still collecting infomation about late reported cases to improve the completeness of the records (see below).
As of 13 January 2012, 96 confirmed human cases of West Nile fever have been reported in the EU; 69 cases in Greece, 3 in Hungary, 14 in Italy and 10 in Romania. In the neighbouring countries, another 207 cases have been declared; 2 in Albania, 4 in the Former Yugoslav Republic of Macedonia, 34 in Israel, 153 in the Russian Federation, 3 in Tunisia, 3 in Turkey and 8 in Ukraine.
Since the last update at the end of the transmission season, 3 cases of West Nile of neuroinvasive infection have been reported from a new country, Hungary, in three areas, the Hajdú-Bihar, Pest and Szabolcs-Szatmár-Bereg counties. These cases occurred in September (2 cases) and October (1 case).
In Italy, 1 new case of neuroinvasive infection has been reported from the Udine province, an area with previous case reports. The case occurred in September. Furthermore, the case from Pisa, previously reported as a WN case is now identified as a Toscana virus infection. Thus it has been removed from the table and map.
In EU neighbouring countries, the Russian Federation has reported 17 new human cases of West Nile fever, that occurred up to and including November. Seven cases have been reported from a new area, Krasnodarskiy Kray and the others from oblasts with previous case reports, Rostovskaya (9) and Chelyabinskaya (1).
In Israel, 1 new human case of West Nile fever has been reported from the Northern district, an area with previous case reports. The case occurred in November.
TABLE ON CASES
Cumulative number of West Nile fever cases, as of 12/01/2012 (N = 303 cases)
| Greece |
69 |
Aitoloakarnania prefecture |
1 |
19/10/2011 |
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Attiki prefecture |
20 |
03/08/2011 |
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Chalkidiki prefecture |
1 |
01/09/2011 |
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Imathia prefecture |
3 |
03/08/2011 |
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Karditsa prefecture |
4 |
27/07/2011 |
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Larisa prefecture |
9 |
29/07/2011 |
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Pella prefecture |
4 |
26/08/2011 |
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Serres prefecture |
5 |
08/08/2011 |
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Thessaloniki prefecture |
3 |
29/07/2011 |
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Trikala prefecture |
4 |
11/08/2011 |
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Voiotia prefecture |
4 |
26/08/2011 |
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n/a |
11 |
11/08/2011 |
| Hungary |
3 |
Hajdú-Bihar county |
1 |
12/12/2011 |
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Pest county |
1 |
01/01/2012 |
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Szabolcs-Szatmár-Bereg county |
1 |
01/01/2012 |
| Italy |
14 |
Belluno province |
1 |
10/10/2011 |
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Olbia province |
1 |
18/10/2011 |
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Oristano province |
3 |
06/10/2011 |
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Udine province |
2 |
02/11/2011 |
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Treviso province |
6 |
09/09/2011 |
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Venezia province |
1 |
09/09/2011 |
| Romania |
10 |
Bucuresti municipality |
6 |
01/09/2011 |
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Constanta county |
1 |
17/08/2011 |
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Galati county |
1 |
21/07/2011 |
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Iasi county |
1 |
06/10/2011 |
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Tulcea county |
1 |
27/07/2011 |
| Albania |
2 |
Lezhe prefecture |
2 |
12/08/2011 |
| Former Yugoslav Republic of Macedonia |
4 |
Skopje region |
4 |
13/09/2011 |
| Israel |
34 |
Central district |
13 |
08/09/2011 |
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Haifa district |
8 |
19/07/2011 |
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Northern district |
8 |
19/07/2011 |
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Tel Aviv district |
4 |
08/09/2011 |
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n/a |
1 |
07/11/2011 |
| Russian Federation |
153 |
Astrakhan oblast |
18 |
16/08/2011 |
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Chelyabinskaya oblast |
2 |
27/10/2011 |
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Krasnodarskiy Kray |
7 |
01/12/2011 |
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Rostovskaya oblast |
16 |
12/08/2011 |
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Tambovskaya oblast |
1 |
20/10/2011 |
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Tatarstan Republic |
1 |
13/09/2011 |
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Volgogradskaya oblast |
61 |
22/07/2011 |
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Voronezhskaya oblast |
47 |
04/08/2011 |
| Tunisia |
3 |
Kebili province |
3 |
02/11/2011 |
| Turkey |
3 |
Antalya province |
1 |
12/09/2011 |
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Mugla province |
1 |
12/09/2011 |
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Sakarya province |
1 |
12/09/2011 |
| Ukraine |
8 |
Donets'ka oblast |
3 |
21/11/2011 |
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Mykolayivs'ka oblast |
2 |
11/11/2011 |
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Zaporiz'ka oblast |
3 |
11/11/2011 | |
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