title: Evaluation of BBL CHROMagar O157 versus sorbitol-MacConkey medium for routine detection of Escherichia coli O157 in a centralized regional clinical microbiology laboratory.
abstract: The performance of BBL CHROMagar O157 (CHROM) versus that of sorbitol-MacConkey (SMAC) media for detection of Escherichia coli O157 was determined for a 3-month period. Results for 27/3,116 (0.9%) stool cultures were positive. CHROM had a higher sensitivity (96.30%) and negative predictive value (100%) and a better diagnostic efficiency than SMAC. Labor and material costs decreased when CHROM was used.
authors.affiliation: Calgary Laboratory Services (CLS), Calgary, Alberta T2N 4B8, Canada. Deirdre.church@cls.ab.ca
authors.forename: D L
authors.initials: DL
authors.lastname: Church
authors.forename: D
authors.initials: D
authors.lastname: Emshey
authors.forename: H
authors.initials: H
authors.lastname: Semeniuk
authors.forename: T
authors.initials: T
authors.lastname: Lloyd
authors.forename: J D
authors.initials: JD
authors.lastname: Pitout
mesh_terms: D001431:Bacteriological Techniques / Q000379:methods*; D003470:Culture Media / Q000737:chemistry*; D004927:Escherichia coli Infections / Q000382:microbiology*; D019453:Escherichia coli O157 / Q000254:growth & development / Q000302:isolation & purification*; D005243:Feces / Q000382:microbiology; D011237:Predictive Value of Tests; D012680:Sensitivity and Specificity
chemical_list: D003470:Culture Media