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Evaluation of MALDI Biotyper Mycobacteria Library v3.0 for Identification of Nontuberculous Mycobacteria
Author(s) -
Belén RodríguezSánchez,
M.J. Ruiz-Serrano,
Adrián Ruíz,
Markus Timke,
Markus Kostrzewa,
Emilio Bouza
Publication year - 2016
Publication title -
journal of clinical microbiology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.349
H-Index - 255
eISSN - 1070-633X
pISSN - 0095-1137
DOI - 10.1128/jcm.02760-15
Subject(s) - nontuberculous mycobacteria , mycobacterium , microbiology and biotechnology , clinical microbiology , identification (biology) , matrix assisted laser desorption/ionization , biology , bacteria , chemistry , genetics , botany , organic chemistry , adsorption , desorption
Matrix-assisted laser desorption ionization-time of flight mass spectrometry (MALDI-TOF MS) has demonstrated its ability to promptly identify nontuberculous mycobacteria using the Mycobacteria Library v2.0. However, some species are particularly difficult to identify reliably using this database, providing a low log(score). In this study, the identification power of an updated Mycobacteria Library (v3.0) has been evaluated. Overall, 109 NTM isolates were analyzed with both databases. The v3.0 database allowed a high-level confidence in the identification [log(score) value, ≥1.8] of 91.7% of the isolates versus 83.5% with the v2.0 version (P< 0.01).

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