Performance of Fully Automated Antimicrobial Disk Diffusion Susceptibility Testing Using Copan WASP Colibri Coupled to the Radian In-Line Carousel and Expert System
Abdessalam Cherkaoui, Gesuèle Renzi, Nicolas Vuilleumier, Jacques Schrenzel
Abstract
spp., respectively. The most important cause of the very major errors encountered on the Vitek 2 for P. aeruginosa (62%, 13/21) was related to the presence of heteroresistant populations. Among the 43 CPE included in this study, one OXA-48-like, and one OXA-181-like were missed by the Vitek 2, even by rigorously applying the CPE screening cutoffs defined by EUCAST. The Colibri coupled to the Radian provide a fully automated solution for antimicrobial disk diffusion susceptibility testing with an accuracy that is equal to or better than that of the Vitek 2 system.
Topics & Concepts
Enterococcus faeciumEnterococcus faecalisEnterococcusMicrobiologyPseudomonas aeruginosaStaphylococcus aureusBiologyStaphylococcusAntimicrobialMedicineAntibioticsBacteriaGeneticsBacterial Identification and Susceptibility TestingAntibiotic Resistance in BacteriaAntimicrobial Resistance in Staphylococcus