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Arch Virol. 2019 Jun;164(6):1673-1675. doi: 10.1007/s00705-019-04243-8. Epub 2019 Apr 5.

Emergence of West Nile virus lineage 2 belonging to the Eastern European subclade, Greece.

Author information

1
Department of Microbiology, National Reference Centre for Arboviruses and Hemorrhagic Fever viruses, Medical School, Aristotle University of Thessaloniki, 51124, ThessalonĂ­ki, Greece. annap@med.auth.gr.
2
Department of Microbiology, National Reference Centre for Arboviruses and Hemorrhagic Fever viruses, Medical School, Aristotle University of Thessaloniki, 51124, ThessalonĂ­ki, Greece.
3
Internal Medicine Clinic, Didimoticho General Hospital, Didimoticho, Greece.
4
Department for Epidemiological Surveillance and Intervention, Hellenic Center for Disease Control and Prevention, Athens, Greece.
5
General Directorate of Public Health and Social Care of Region of Eastern Macedonia and Thrace, Komotini, Greece.

Abstract

West Nile virus (WNV) emerged in Greece in 2010 and since then human outbreaks occurred every year except 2015 and 2016. An early start and prolonged WNV transmission season was observed in 2018 with a record number of 316 reported cases and 47 fatalities. The Greek WNV strains detected during 2010-2018 clustered within the central European subclade of lineage 2. A novel WNV genetic variant was detected in August 2018 in one human case in the north-eastern region of Greece, at the land cross-border with Turkey and Bulgaria. The strain belongs to the Eastern European subclade of lineage 2 suggesting a new virus introduction in the country and the continuously changing epidemiology of the disease.

KEYWORDS:

Eastern European subclade; Greece; Lineage 2; West Nile virus

PMID:
30953205
DOI:
10.1007/s00705-019-04243-8
[Indexed for MEDLINE]

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