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Vector Borne Zoonotic Dis. 2017 Oct;17(10):714-719. doi: 10.1089/vbz.2017.2190. Epub 2017 Aug 24.

Genomic Characterization of Crimean-Congo Hemorrhagic Fever Virus in Hyalomma Tick from Spain, 2014.

Author information

1
1 Galveston National Laboratory, Department of Microbiology & Immunology, Institute for Human Infections and Immunity, University of Texas Medical Branch , Galveston, Texas.
2
2 Department of Pathology, University of Texas Medical Branch , Galveston, Texas.
3
3 Parasitology & Parasitic Diseases, Department of Animal Health, Faculty of Veterinary Medicine, University of Extremadura , Cáceres, Spain .
4
4 Arbovirus and Imported Viral Diseases Unit, Centro Nacional de Microbiología, Instituto de Salud Carlos III, Red de Investigación Colaborativa en Enfermedades Tropicales , Madrid, Spain .
5
5 Department of Animal Health, Faculty of Veterinary Medicine, University of Zaragoza , Zaragoza, Spain .

Abstract

Crimean-Congo hemorrhagic fever (CCHF) is a severe tick-borne disease caused by CCHF virus (CCHFV). Ticks in the genus Hyalomma are the main vectors and reservoirs of CCHFV. In Spain, CCHFV was first detected in Hyalomma ticks from Cáceres in 2010. Subsequently, two autochthonous CCHF cases were reported in August 2016. In this study, we describe the characterization of the CCHFV genome directly from Hyalomma lusitanicum collected in Cáceres in 2014. Phylogenetic analyses reveal a close relationship with clade III strains from West Africa, with an estimated divergence time of 50 years. The results of this work suggest that CCHFV has been circulating in Spain for some time, and most likely originated from West Africa.

KEYWORDS:

Crimean–Congo hemorrhagic fever (CCHF); Hyalomma tick; Spain; emerging disease; tick-borne disease

PMID:
28836897
DOI:
10.1089/vbz.2017.2190
[Indexed for MEDLINE]

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