Paiba, G A Orf (contagious pustular dermatitis) in farmworkers: prevalence and risk factors in three areas of England. [electronic resource] - The Veterinary record Jul 1999 - 7-11 p. digital Publication Type: Journal Article; Research Support, Non-U.S. Gov't ISSN: 0042-4900 Standard No.: 10.1136/vr.145.1.7 doi Subjects--Topical Terms: Animal HusbandryAnimalsCohort StudiesDogsEcthyma, Contagious--epidemiologyEngland--epidemiologyHumansOccupational DiseasesPrevalenceRisk FactorsSerologic TestsSheep