title: Herd prevalence of Johne's disease.
authors.forename: Richard
authors.initials: R
authors.lastname: Kemp
authors.forename: George
authors.initials: G
authors.lastname: Caldow
authors.forename: Sam
authors.initials: S
authors.lastname: Strain
mesh_terms: D000822:Animal Husbandry; D000818:Animals; D002417:Cattle; D002418:Cattle Diseases / Q000191:economics / Q000453:epidemiology* / Q000517:prevention & control; D016927:Mycobacterium avium subsp. paratuberculosis / Q000145:classification; D010283:Paratuberculosis / Q000191:economics / Q000453:epidemiology* / Q000517:prevention & control; D015995:Prevalence; D012307:Risk Factors; D006113:United Kingdom / Q000453:epidemiology