title: Epidemiological observations on sarcoids in a population of donkeys (Equus asinus).
abstract: An epidemiological study of equine sarcoid in a population of 4126 donkeys showed that the peak incidence of the disease was 15.2 cases per 100 animal-years and occurred in animals in their fourth year of life. The crude incidence of the disease was 0.6 cases per 100 animal-years. The disease occurred most frequently in younger, male animals during their first five years in the population. The lesions were observed most commonly in the paragenital region. Pre-entry quarantine procedures did not appear to play a significant role in the spread of the disease but there was an indication that close in-contact animals were more likely to have sarcoids than animals in the general population. This suggested that a transmissible agent might have been involved in the aetiopathogenesis or that the animals had encountered some event that had predisposed them to the disease.
authors.affiliation: Department of Veterinary Medicine, University of Glasgow Veterinary School, Bearsden.
authors.forename: S W
authors.initials: SW
authors.lastname: Reid
authors.forename: G
authors.initials: G
authors.lastname: Gettinby
authors.forename: J N
authors.initials: JN
authors.lastname: Fowler
authors.forename: P
authors.initials: P
authors.lastname: Ikin
mesh_terms: D000367:Age Factors; D000818:Animals; D005260:Female; D015994:Incidence; D008297:Male; D010212:Papilloma / Q000453:epidemiology / Q000662:veterinary*; D010527:Perissodactyla; D012307:Risk Factors; D012606:Scotland / Q000453:epidemiology; D012878:Skin Neoplasms / Q000453:epidemiology / Q000662:veterinary*