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Prevalence and genetic diversity of avipoxvirus in house sparrows in Spain

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Ruiz Martínez, Jorge and Ferraguti, Martina and Figuerola, Jordi and Martínez de la Puente, Josué and Williams, Richard Alexander John and Herrera Dueñas, Amparo and Aguirre de Miguel, José Ignacio and Soriguer, Ramón and Escudero, Clara and Moens, Michaël André Jean and Pérez Tris, Javier and Benítez Rico, Laura (2016) Prevalence and genetic diversity of avipoxvirus in house sparrows in Spain. PLoS ONE, 11 (12). ISSN 1932-6203

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Official URL: http://journals.plos.org/plosone/article?id=10.1371/journal.pone.0168690



Abstract

Avipoxvirus (APV) is a fairly common virus affecting birds that causes morbidity and mortality in wild and captive birds. We studied the prevalence of pox-like lesions and genetic diversity of APV in house sparrows (Passer domesticus) in natural, agricultural and urban areas in southern Spain in 2013 and 2014 and in central Spain for 8 months (2012–2013). Overall, 3.2% of 2,341 house sparrows visually examined in southern Spain had cutaneous lesions consistent with avian pox. A similar prevalence (3%) was found in 338 birds from central Spain. Prevalence was higher in hatch-year birds than in adults. We did not detect any clear spatial or temporal patterns of APV distribution. Molecular analyses of poxvirus-like lesions revealed that 63% of the samples were positive. Molecular and phylogenetic analyses of 29 DNA sequences from the fpv167 gene, detected two strains belonging to the canarypox clade (subclades B1 and B2) previously found in Spain. One of them appears predominant in Iberia and North Africa and shares 70% similarity to fowlpox and canarypox virus. This APV strain has been identified in a limited number of species in the Iberian Peninsula, Morocco and Hungary. The second one has a global distribution and has been found in numerous wild bird species around the world. To our knowledge, this represents the largest study of avian poxvirus disease in the broadly distributed house sparrow and strongly supports the findings that Avipox prevalence in this species in South and central Spain is moderate and the genetic diversity low.


Item Type:Article
Uncontrolled Keywords:Avipoxvirus; Gorriones; Paseriformes; Aves; Virología; Zoología; España
Subjects:Medical sciences > Biology > Birds
Medical sciences > Biology > Genetics
Medical sciences > Biology > Zoology
ID Code:41258
Deposited On:13 Feb 2017 13:41
Last Modified:10 Dec 2018 15:30

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