title: Evaluation of the new DrySlide beta-lactamase test.
abstract: Four hundred thirteen recent clinical isolates of Staphylococcus, Haemophilus, Moraxella, and Neisseria species were tested for beta-lactamase production using the Difco DrySlide beta-lactamase test. These results were compared with those of the BBL Cefinase reagent. Of the 413 isolates tested, 258 (62.5%) were beta-lactamase positive. There was 99.8% agreement between the two test methods; only one isolate of Staphylococcus aureus was DrySlide-negative and Cefinase-positive. The DrySlide beta-lactamase reagent is an accurate and convenient format for the evaluation of beta-lactamase activity in the clinical laboratory.
authors.affiliation: Department of Pathology, Sparrow Hospital, Lansing, Michigan 48909-7980.
authors.forename: J W
authors.initials: JW
authors.lastname: Dyke
authors.forename: W J
authors.initials: WJ
authors.lastname: Brown
authors.forename: J M
authors.initials: JM
authors.lastname: Morris
authors.forename: C L
authors.initials: CL
authors.lastname: Pierson
authors.forename: E M
authors.initials: EM
authors.lastname: Peters
mesh_terms: D005069:Evaluation Studies as Topic; D006801:Humans; D012680:Sensitivity and Specificity; D001618:beta-Lactamases / Q000032:analysis*
chemical_list: D001618:beta-Lactamases