Erysipelothrix rhusiopathiae

Paul G. Auwaerter, M.D.
Erysipelothrix rhusiopathiae is a topic covered in the Johns Hopkins ABX Guide.

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MICROBIOLOGY

  • Aerobe or facultative anaerobe, thin, pleomorphic Gram-positive rod.
  • Zoonotic infection that more commonly infects turkeys, pigs and other animals than humans.
  • E. rhusiopathiae is the only genus within species that infects humans.
  • Culture isolation difficult.
    • A slow grower in enriched blood media with 5-10% CO2.
  • Intrinsically resistant to vancomycin, which commonly might be used empirically unless the organism is properly identified and distinguished from diphtheroids (Corynebacterium spp.) and Lactobacillus.
    • Also usually resistant to aminoglycosides and sulfonamides.

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MICROBIOLOGY

  • Aerobe or facultative anaerobe, thin, pleomorphic Gram-positive rod.
  • Zoonotic infection that more commonly infects turkeys, pigs and other animals than humans.
  • E. rhusiopathiae is the only genus within species that infects humans.
  • Culture isolation difficult.
    • A slow grower in enriched blood media with 5-10% CO2.
  • Intrinsically resistant to vancomycin, which commonly might be used empirically unless the organism is properly identified and distinguished from diphtheroids (Corynebacterium spp.) and Lactobacillus.
    • Also usually resistant to aminoglycosides and sulfonamides.

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