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J Clin Microbiol. 2013 Nov;51(11):3852-4. doi: 10.1128/JCM.01618-13. Epub 2013 Aug 21.

Comparison of matrix-assisted laser desorption ionization-time of flight (maldi-tof) mass spectrometry platforms for the identification of gram-negative rods from patients with cystic fibrosis.

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  • 1Clinical Microbiology/Immunology Laboratories, UNC Health Care, Chapel Hill, North Carolina, USA.


We evaluated the performance of the Bruker Biotyper and the bioMérieux Vitek MS with both the SARAMIS v4.09 and Knowledge Base v2.0 databases for the identification of 203 non-glucose-fermenting Gram-negative rods that had previously been identified by 16S rRNA gene sequencing. Including those that underwent repeat testing, 96.6%, 90.1%, and 93.6% of isolates, respectively, had identifications that agreed with the previous identification.

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