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Updated: Sep 1, 2025

Identification of Rare Bacterial Pathogens by 16S rRNA Gene Sequencing and MALDI-TOF MS
Published on: July 11, 2016
Evaluation of Matrix-assisted laser desorption/ionization Time-of flight Mass spectrometry (MALDI TOF MS) and VITEK 2
Anitha Madhavan1, Arun Sachu2, Nandini Sethuraman3
1Department of Microbiology, Government TD Medical College, Alappuzha, Kerala, India.
Bacground:
Microbial Identification was done by phenotypic methods. VITEK-2 and Matrix-assisted laser desorption ionization-time of flight mass spectrometry (MALDI-TOF MS) are now being increasingly used in laboratories.
Objectives:
To compare and evaluate the usefulness of MALDI-TOF MS and VITEK-2 in routine microbial identification.
Methods:
The performances of MALDI-TOF MS and VITEK 2 were compared for identifying microorganisms.
Results:
MALDI- TOF MS and VITEK-2 correctly identified 96 % (96/100) and 97% (97/100) of the isolates upto the genus level.
Conclusion:
MALDI TOF MS and VITEK -2 gave comparable identification and error rates. The rapid reduction in turnaround time with MALDI TOF is a significant game-changer in the field of clinical microbiology.
Funding:
State Board of Medical Research (SBMR).
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