title: Preliminary antimicrobial susceptibility interpretive criteria for cefetamet (Ro 15-8074) and cefteram (Ro 19-5247) disk tests.
abstract: Preliminary interpretive zone criteria were calculated for cefetamet (Ro 15-8074) and cefteram (Ro 19-5247) by using 10- and 30-micrograms disks and three possible MIC susceptibility breakpoints. Absolute interpretive agreement between MICs and zone size criteria ranged from 91.8 to 97.2%. Very major errors (false susceptibility) were less than or equal to 1.2% for both cephalosporin disk tests. Morganella morganii strains appeared to produce the highest rates of very major interpretive errors with cefetamet disks.
authors: Clinical Microbiology Institute, Tualatin, Oregon 97062.
authors: R N
authors: RN
authors: Jones
authors: A L
authors: AL
authors: Barry
mesh_terms: D001419:Bacteria / Q000187:drug effects*; D015281:Cefmenoxime / Q000031:analogs & derivatives*; D015296:Ceftizoxime / Q000031:analogs & derivatives*; D002511:Cephalosporins / Q000494:pharmacology*; D003201:Computers; D008826:Microbial Sensitivity Tests; D011237:Predictive Value of Tests; D012044:Regression Analysis
chemical_list: D002511:Cephalosporins; C047444:cefetamet; C049493:cefteram; D015296:Ceftizoxime; D015281:Cefmenoxime