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Updated: Aug 19, 2026

Direct Microbial Identification using An Automated Microbial Identification System to Facilitate the EUCAST RAST Method Without Mass Spectrometry
Published on: May 24, 2024
Evaluation of the Vitek 2 system for identification and antimicrobial susceptibility testing of Staphylococcus spp
C Nonhoff1, S Rottiers, M J Struelens
1Microbiology, Hôpital Erasme, Brussels, Belgium. claire.nonhoff@ulb.ac.be
Abstract:
The Vitek 2 system was assessed against reference methods with 197 methicillin-resistant Staphylococcus aureus from Belgian hospitals and 121 clinically significant blood culture isolates of Staphylococcus spp. Vitek 2 identified 95% of staphylococcal isolates correctly, detected oxacillin resistance with a sensitivity/specificity of 99/96%, and showed acceptable accuracy for susceptibility testing of five of eight other evaluable antibiotics. The median time for reporting results was 2 h 45 min for identification and 7 h for susceptibility tests.
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