Evaluation of the new DrySlide beta-lactamase test.
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.
Dyke
J W
JW
Department of Pathology, Sparrow Hospital, Lansing, Michigan 48909-7980.
Brown
W J
WJ
Morris
J M
JM
Pierson
C L
CL
Peters
E M
EM
D005069:Evaluation Studies as Topic; D006801:Humans; D012680:Sensitivity and Specificity; D001618:beta-Lactamases / Q000032:analysis*
D001618:beta-Lactamases