title: Paratuberculosis (Johne's disease) in a herd of Friesian cattle in Zambia.
mesh_terms: D000818:Animals; D002417:Cattle; D002418:Cattle Diseases / Q000453:epidemiology* / Q000473:pathology; D005260:Female; D010283:Paratuberculosis / Q000453:epidemiology* / Q000473:pathology; D015024:Zambia