Matrix-assisted laser desorption ionization-time of flight: a promising alternative method of identifying the major coagulase-negative Staphylococci species
Rev. Soc. Bras. Med. Trop
;
51(1): 85-87, Jan.-Feb. 2018. tab
Article
in English
| LILACS
| ID: biblio-1041445
ABSTRACT
Abstract INTRODUCTION. This study aimed to evaluate different methods for differentiation of species of coagulase-negative staphylococci (CoNS) that caused infections in hospitalized immunocompromised patients. METHODS. A total of 134 CoNS strains were characterized using four different methods. RESULTS. The results of matrix assisted laser desorption/ionization mass spectrometry (MALDI-TOF MS) analysis were in complete agreement with those of tuf gene sequencing (kappa index = 1.00). The kappa index of Vitek 2® Compact analysis was 0.85 (very good) and that of the conventional method was 0.63 (moderate). CONCLUSIONS . MALDI-TOF MS provided rapid and accurate results for the identification of CoNS (134; 100%).
Full text:
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Index:
LILACS (Americas)
Main subject:
Staphylococcus
/
Bacteriological Techniques
/
Coagulase
/
Spectrometry, Mass, Matrix-Assisted Laser Desorption-Ionization
Type of study:
Prognostic study
Limits:
Humans
Language:
English
Journal:
Rev. Soc. Bras. Med. Trop
Journal subject:
Tropical Medicine
Year:
2018
Type:
Article
Affiliation country:
Brazil
Institution/Affiliation country:
Faculdades Pequeno Príncipe/BR
/
Universidade Estadual de Ponta Grossa/BR
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