Filiform viral squamous papillomas on sheep
Hayward, M.L.; Baird, P.J.; Meischke, H.R.
Veterinary Record 132(4): 86-88
1993
ISSN/ISBN: 0042-4900 PMID: 8382390 Document Number: 411064
Approximately 2660 sheep and lambs were examined during 3 surveys carried out at an abattoir in New South Wales, Australia in winter and spring 1991; 86 specimens were collected. Filiform squamous papillomas which were of the verruca vulgaris type occurred on less than 1% of young sheep; 9 lesions were collected from 8 lambs, 4 males and 4 females. All the lesions were found on the anterior aspect of the lower foreleg. The filiform squamous papillomas corresponded closely to those on cattle and other species; but they lacked the fibromatous component of papillomas reported previously. The microscopical, immunological and molecular evidence for the presence of a putative ovine papillomavirus in these lesions are described.