Seasonal #surveillance in #humans in 2026 for #WNV (West Nile Virus) (ECDC, July 24 '26): 81 confirmed cases so far of which 46 in #Italy

 

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Week 30, 2026 | Produced on 23 July 2026 at 09:45, based on data submitted up until and including 22 July 2026.

Current situation

    ° Since the beginning of the 2026 transmission season, and as at 22 July, 35 areas affected by West Nile virus (WNV) have been identified in six countries across Europe.

    ° These areas are located in: 

        § Italy (20), 

        § Greece (six), 

        § Romania (four), 

        § North Macedonia (two), 

        § Spain (two) and 

        § France (one).

    ° The six countries have reported 81 locally acquired human cases of WNV infection: 

        § Italy has reported 46, 

        § Greece 21, 

        § North Macedonia five, 

        § Romania five, 

        § Spain three and 

        § France one case.

    ° This week, nine areas are reported as affected for the first time this season. The affected areas identified as at 22 July 2026 are listed in Table 1 and shown in Map 1 below.

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Table 1. Areas affected by West Nile virus during the 2026 transmission season at 22 July, by country and NUTS3 or GAUL1 area

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Source: 

Link: https://www.ecdc.europa.eu/en/west-nile-fever/surveillance-and-disease-data/disease-data-ecdc

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#WNV in #humans, the European Region, Weekly #Report (ECDC, July 17 '26): #Italy (21), #Greece (7), North #Macedonia (2), #Romania (2) & #Spain (2) cases so far

 

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Week 29, 2026 | Produced on 17 July 2026 at 08:30, based on data submitted up until and including 15 July 2026.

Current situation

    ° Since the beginning of the 2026 transmission season, and as at 15 July, 28 areas affected by West Nile virus (WNV) have been identified in five countries across Europe {1}.

    ° These areas are located in: 

        § Italy (17), 

        § Greece (five), 

        § North Macedonia (two), 

       § Romania (two) and 

        § Spain (two).

    ° The five countries have reported 34 locally acquired {2} human cases of WNV infection: 

        § Italy has reported 21, 

        § Greece seven,     

        § North Macedonia two, 

        § Romania two and 

        § Spain two cases.

    ° This week, 17 areas are reported as affected for the first time this season. The affected areas identified as at 15 July 2026 are listed in Table 1 and shown in Map 1 below.

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Table 1. Areas affected by West Nile virus during the 2026 transmission season at 15 July, by country and NUTS3 or GAUL1 area

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* ‘First reported this week’ indicates that the affected area was not included in the previous weekly overview.

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Source: 

Link: https://wnv-weekly.ecdc.europa.eu/

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Seasonal #surveillance in #humans in 2026 for #WNV - Update (ECDC, July 10 '26): #Italy reported 6 cases, #Macedonia 2, #Romania 2, #Greece 1, #Spain 1

 

Week 28, 2026 | Produced on 9 July 2026 at 08:45, based on data submitted up to 8 July 2026.

Current situation

    ° Since the beginning of the 2026 transmission season, and as of 8 July, 11 areas affected by West Nile virus (WNV) have been identified in five countries across Europe {1}.

    ° These areas are located in: 

        - Italy (five), 

        - North Macedonia (two), 

        - Romania (two), 

        - Greece (one) and 

        - Spain (one).

    ° The five countries have reported 12 locally acquired {2} human cases of WNV infection: 

        - Italy has reported six, 

        - North Macedonia two, 

        - Romania two, 

        - Greece one and 

        - Spain one case.

    ° This week, five areas are reported as affected for the first time this season. 

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Table 1. Areas affected by West Nile virus during the 2026 transmission season as of 8 July, by country and NUTS3 or GAUL1 area

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{*} ‘First reported this week’ indicates that the affected area was not included in the previous weekly overview.

{1} European Union/European Economic Area countries and selected EU-neighbouring countries (Albania, Bosnia and Herzegovina, Kosovo**, Montenegro, North Macedonia, Serbia and Türkiye).

{**} This designation is without prejudice to positions on status and is in line with UNSCR 1244/1999 and the ICJ Opinion on the Kosovo declaration of independence.↩︎

{2} Cases acquired within the reporting country.↩︎

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Source: 

Link: https://www.ecdc.europa.eu/en/west-nile-fever/surveillance-and-disease-data/disease-data-ecdc

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#Greece - #Influenza A #H5N1 viruses of high pathogenicity (Inf. with) (non-poultry including wild birds) (2017-) - Immediate notification

 

A wild Whooper Swan in Kastoria Region.

Source: 

Link: https://wahis.woah.org/#/in-review/7433

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Detection of #WNV, #USUV and #Insect-Specific #Bunyaviruses in #Culex spp. Mosquitoes, #Greece, 2024

 

Abstract

Greece is one of the countries in Europe most affected by West Nile virus (WNV), and since 2010, when the virus caused a large outbreak with 197 human neuroinvasive cases, outbreaks occur almost every year. Mosquito surveillance is an indirect sign of virus circulation; therefore, the purpose of the study was the molecular detection of WNV in 45,988 C. pipiens s.l. mosquitoes collected during 2024 in four Regions of Greece and the genetic characterization of the virus strains. WNV was detected in 41 of 1316 (3.12%) Culex spp. mosquito pools. Next-generation sequencing was applied to the WNV-positive samples that had a high viral load. All WNV sequences belong to Cluster B of the sub-lineage Europe WNV-2A presenting a temporal clustering. The WNV infection rates varied highly across the Regions, regional units and months, being higher in Thessaly and Central Macedonia Regions, especially in July and September. All mosquito pools were also tested for Usutu virus (USUV), and one pool was found positive, with sequence clustering into the EU-2 lineage. A subset of mosquitoes (737 pools) was tested for additional viruses, and bunya-like viruses were detected in 6 pools with sequences clustering into four distinct subclades. The prompt detection of pathogenic viruses is helpful for the design of control measures, while the detection of insect-specific viruses provides insights into viral diversity and evolution.

Source: Viruses, https://www.mdpi.com/1999-4915/17/11/1414

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#Greece - #Influenza A #H5N1 viruses of high pathogenicity (Inf. with) (non-poultry including wild birds) (2017-) - Immediate notification

Wild Dalmatian Pelicans in Florina Region.

Source: WOAH, https://wahis.woah.org/#/in-review/6281?reportId=172377&fromPage=event-dashboard-url

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