title: Preparation, assessment and preservation of antigen from Brucella abortus strain 45/20 for use in the rough antigen complement fixation test.
abstract: Two methods of extraction were used to prepare antigens from Brucella abortus rough strain 45/20. The antigens were assessed for use in the complement fixation test. A suitable antigen was prepared using the saline extraction method of Miller et al. (1976) and used extensively in CF tests. Four methods of preservation were compared; -20 degrees C, -196 degrees C, 0.5% phenol at 4 degrees C, and lyophilisation. The antigen could be stored at -20 degrees C or -196 degrees C for up to 2 years.
mesh_terms: D000818:Animals; D000942:Antigens, Bacterial / Q000276:immunology / Q000302:isolation & purification*; D002003:Brucella abortus / Q000276:immunology* / Q000302:isolation & purification; D002417:Cattle; D003168:Complement Fixation Tests / Q000662:veterinary*; D005260:Female; D005615:Freezing; D019800:Phenol; D010636:Phenols; D011309:Preservation, Biological
chemical_list: D000942:Antigens, Bacterial; D010636:Phenols; D019800:Phenol