Spatio-temporal dynamics and aetiology of proliferative leg skin lesions in wild British finches
Robinson, Robert A.
Fernandez, Julia Rodriguez-Ramos
John, Shinto K.
Toms, Mike P.
Cunningham, Andrew A.
AffiliationInstitute of Zoology, Zoological Society of London, Regent’s Park, London, NW1 4RY, UK.
British Trust for Ornithology, The Nunnery, Thetford, Norfolk, IP24 2PU, UK.
IDEXX Laboratories Limited, Grange House, Sandbeck Way, Wetherby, West Yorkshire, LS22 7DN, UK.
Departamento de Genética, Fisiología y Microbiología, Facultad de Ciencias Biológicas, Universidad Complutense de Madrid, E-28040, Madrid, Spain.
Zoonotic Ecology and Epidemiology, EEMiS, Linnaeus University, Kalmar, 391 82, Sweden
Departamento de Biodiversidad, Ecología y Evolución, Facultad de Ciencias Biológicas, Universidad Complutense de Madrid, E-28040, Madrid, Spain
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AbstractProliferative leg skin lesions have been described in wild finches in Europe although there have been no large-scale studies of their aetiology or epizootiology to date. Firstly, disease surveillance, utilising public reporting of observations of live wild finches was conducted in Great Britain (GB) and showed proliferative leg skin lesions in chaffinches (Fringilla coelebs) to be widespread. Seasonal variation was observed, with a peak during the winter months. Secondly, pathological investigations were performed on a sample of 39 chaffinches, four bullfinches (Pyrrhula pyrrhula), one greenfinch (Chloris chloris) and one goldfinch (Carduelis carduelis) with proliferative leg skin lesions and detected Cnemidocoptes sp. mites in 91% (41/45) of affected finches and from all species examined. Fringilla coelebs papillomavirus (FcPV1) PCR was positive in 74% (23/31) of birds tested: a 394 base pair sequence was derived from 20 of these birds, from all examined species, with 100% identity to reference genomes. Both mites and FcPV1 DNA were detected in 71% (20/28) of birds tested for both pathogens. Histopathological examination of lesions did not discriminate the relative importance of mite or FcPV1 infection as their cause. Development of techniques to localise FcPV1 within lesions is required to elucidate the pathological significance of FcPV1 DNA detection.
CitationLawson, B., et al., (2018). 'Spatio-temporal dynamics and aetiology of proliferative leg skin lesions in wild British finches'. Scientific reports, 8(1), pp. 1-22. DOI: 10.1038/s41598-018-32255-y.
PublisherNature Publiching Group
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