Comparison of the ASTA MicroIDSys and VITEK MS matrix-assisted laser desorption/ionization time-of-flight mass spectrometry systems for identification of clinical bacteria and yeasts

Jin Jung, Soo Young Kim, Yeon Joon Park, Jaewoong Lee, Hyun Soo Suk, Sung Il Ha, Jeong Seob Shin, Kang Gyun Park, Yeongsic Kim

Research output: Contribution to journalArticlepeer-review

10 Scopus citations

Abstract

The ASTA MicroIDSys system (ASTA, Suwon, Korea) is a newly developed Matrix-assisted laser desorption/ionization time-of-flight mass spectrometry (MALDI-TOF MS) system for identification of microorganisms. We compared the performance of the ASTA MicroIDSys system with that of the VITEK MS system (bioMérieux, Marcy l'Etoile, France) for identifying clinical microorganisms. A total 2055 isolates including 1910 bacteria and 145 yeasts were tested. Among them, the VITEK MS correctly identified 1999 (97.3%) isolates to species level and 26 (1.3%) to the genus level. The ASTA MicroIDSys correctly identified 1988 (96.7%) isolates to species level and 28 (1.4%) to the genus level. The VITEK MS and ASTA MicroIDSys misidentified one isolate and four (0.2%) isolates, respectively, and provided no identification for 29 (1.4%) and 35 (1.7%) isolates, respectively. The performance of the ASTA MicroIDSys was comparable to that of the VITEK MS for identification of clinically relevant bacterial and yeast isolates.

Original languageEnglish
Pages (from-to)1328-1333
Number of pages6
JournalJournal of Infection and Chemotherapy
Volume26
Issue number12
DOIs
StatePublished - Dec 2020

Bibliographical note

Funding Information:
This work was supported by the Ministry of Health & Welfare, Republic of Korea (grant number: HI18C-2318-020019).

Funding Information:
This work was supported by the Ministry of Health & Welfare, Republic of Korea (grant number: HI18C-2318-020019 ).

Publisher Copyright:
© 2020 Japanese Society of Chemotherapy and The Japanese Association for Infectious Diseases

Keywords

  • ASTA MicroIDSys
  • Bacteria
  • Matrix-assisted laser desorption/ionization time-of-flight mass spectrometry
  • VITEK MS
  • Yeast

Fingerprint

Dive into the research topics of 'Comparison of the ASTA MicroIDSys and VITEK MS matrix-assisted laser desorption/ionization time-of-flight mass spectrometry systems for identification of clinical bacteria and yeasts'. Together they form a unique fingerprint.

Cite this