Antimicrobial susceptibility testing of Bacteroides fragilis using the MALDI Biotyper antibiotic susceptibility test rapid assay (MBT-ASTRA)

ESGAI (ESCMID Study Group on Anaerobic Infections)

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Abstrakt

This study evaluated the MBT-ASTRA for antimicrobial susceptibility testing of Bacteroides fragilis with different classes of antibiotics. MALDI-TOF MS peak AUCs from suspensions with B. fragilis with and without an antibiotic were used to calculate the relative growth (AUC "with antibiotic" divided by "without antibiotic"). Antimicrobial susceptibility testing of B. fragilis ATCC 25285 (susceptible) and B. fragilis O18 (resistant) was demonstrated with a clear difference of the relative growth between susceptible and resistant. The MBT-ASTRA needs further development and assessment but could be a relatively easy and inexpensive method for rapid antimicrobial susceptibility testing in specific cases of infection with B. fragilis.

OriginalsprogEngelsk
TidsskriftAnaerobe
Vol/bind54
Sider (fra-til)236-239
ISSN1075-9964
DOI
StatusUdgivet - dec. 2018

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