title: TB breakdowns in closed herds.
authors.forename: Andrew
authors.initials: A
authors.lastname: Biggs
mesh_terms: D000818:Animals; D002417:Cattle; D003937:Diagnosis, Differential; D005188:False Negative Reactions; D005260:Female; D007428:Intradermal Tests / Q000662:veterinary*; D014380:Tuberculosis, Bovine / Q000175:diagnosis* / Q000473:pathology