Eyach virus

Eyach virus
Virus classification
Group:	Group III (dsRNA)
Order:	Unassigned
Family:	Reoviridae
Subfamily:	Spinareovirinae
Genus:	Coltivirus
Species:	Eyach virus

Eyach virus (EYAV) is a viral infection (genus Coltivirus) in the Reoviridae family transmitted by a tick vector. It has been isolated from Ixodes ricinus and I. ventalloi ticks in Europe.[1] It is closely related to Colorado tick fever virus, the type virus of Coltivirus.

Transmission and clinical syndromes

Eyach virus is acquired by tick bite. The tick gets infected after a blood meal from a vertebrate host, which is suspected to be the European rabbit O. cunniculus.[2] Eyach virus has been linked to tick-borne encephalitis, as well as polyradiculoneuritis and meningopolyneuritis, based on serological samples of patients with these neurological disorders.

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References

Attoui, Houssam; Jaafar, Fauziah Mohd; Micco, Philippe de; Lamballerie, Xavier de (2005). "Coltiviruses and Seadornaviruses in North America, Europe, and Asia". Emerging Infectious Diseases. 11 (11): 1673–1679. doi:10.3201/eid1111.050868. PMC 3367365. PMID 16318717.
Chastel, C.; Main, A. J.; Couatarmanac'h, A.; Le Lay, G.; Knudson, D. L.; Quillien, M. C.; Beaucournu, J. C. (1984-01-01). "Isolation of Eyach virus (Reoviridae, Colorado tick fever group) from Ixodes ricinus and I. ventalloi ticks in France". Archives of Virology. 82 (3–4): 161–171. doi:10.1007/BF01311160. ISSN 0304-8608. PMID 6508529.

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[1] Attoui, Houssam; Jaafar, Fauziah Mohd; Micco, Philippe de; Lamballerie, Xavier de (2005). "Coltiviruses and Seadornaviruses in North America, Europe, and Asia". Emerging Infectious Diseases. 11 (11): 1673–1679. doi:10.3201/eid1111.050868. PMC 3367365. PMID 16318717.

[2] Chastel, C.; Main, A. J.; Couatarmanac'h, A.; Le Lay, G.; Knudson, D. L.; Quillien, M. C.; Beaucournu, J. C. (1984-01-01). "Isolation of Eyach virus (Reoviridae, Colorado tick fever group) from Ixodes ricinus and I. ventalloi ticks in France". Archives of Virology. 82 (3–4): 161–171. doi:10.1007/BF01311160. ISSN 0304-8608. PMID 6508529.