A multicenter survey of antimicrobial susceptibility of Prevotella species as determined by Etest methodology

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Nurver Ulger Toprak1, Alida C M Veloo2, Edit Urban3

  • 1Marmara University School of Medicine, Department of Microbiology, Istanbul, Turkey.

Anaerobe
|June 4, 2018
PubMed

Insights

Antimicrobial susceptibility testing reveals that while some antibiotics are effective against Prevotella species, others show concerning resistance. This highlights the need for species identification and ongoing monitoring to guide effective treatment strategies.

Area of Science:

  • Microbiology
  • Infectious Diseases
  • Antimicrobial Resistance

Background:

  • Limited knowledge exists regarding antimicrobial susceptibility patterns of various Prevotella species.
  • Prevotella species are increasingly recognized as significant pathogens in various infections.

Purpose of the Study:

  • To determine the current antimicrobial susceptibility profiles of clinical Prevotella isolates across Europe, Kuwait, and Turkey.
  • To identify trends in antimicrobial resistance among different Prevotella species.

Main Methods:

  • Antimicrobial susceptibility testing was performed on 508 Prevotella isolates from 19 species using Etest methodology.
  • Susceptibility interpretations followed EUCAST, CLSI, and FDA guidelines.

Main Results:

  • All Prevotella species demonstrated susceptibility to piperacillin/tazobactam, imipenem, meropenem, tigecycline, and metronidazole.
  • Ampicillin, clindamycin, tetracycline, and moxifloxacin exhibited lower activity, with significant non-susceptibility rates.
  • Prevotella bivia was the most common species, and 9.6% of isolates were multidrug-resistant.

Conclusions:

  • The observed non-susceptibility rates to certain antimicrobials are a cause for concern for treating Prevotella infections.
  • Species-level identification and regular susceptibility monitoring are crucial for guiding empirical treatment decisions.
Keywords:
Antimicrobial susceptibilityEtestMulticenter studyMultidrug-resistancePrevotellaSurveillance

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