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Vancomycin-resistant streptococci or Leuconostoc sp.

A Buu-Hoï, C Branger, J F Acar

    Antimicrobial Agents and Chemotherapy
    |September 1, 1985
    PubMed
    Summary
    This summary is machine-generated.

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    Highly vancomycin-resistant Leuconostoc spp. were isolated from patients. This study determined the antimicrobial susceptibility of these emerging clinical pathogens.

    Area of Science:

    • Microbiology
    • Clinical Infectious Diseases
    • Antimicrobial Resistance

    Background:

    • Vancomycin is a critical antibiotic for treating serious gram-positive bacterial infections.
    • Emergence of vancomycin resistance in bacteria poses a significant threat to public health.
    • Leuconostoc species are typically found in food products and rarely associated with human infections.

    Observation:

    • Two clinical isolates of Leuconostoc spp. demonstrated exceptionally high vancomycin resistance (MICs of 512 and 1,024 µg/mL).
    • These gram-positive cocci were recovered from blood cultures of immunocompromised patients.
    • This marks the first reported isolation of Leuconostoc spp. from human clinical specimens.

    Findings:

    • Antimicrobial susceptibility testing was performed on eight Leuconostoc strains, including the two clinical isolates.

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  • The study evaluated the efficacy of 23 different antimicrobial agents against these resistant Leuconostoc strains.
  • Detailed susceptibility profiles will guide treatment strategies for infections caused by these organisms.

    • Implications:

    • The findings highlight Leuconostoc spp. as a potential source of emerging vancomycin resistance in clinical settings.
    • Understanding the antimicrobial susceptibility patterns is crucial for managing infections caused by these unusual pathogens.
    • This research underscores the need for vigilance in monitoring for non-traditional bacteria exhibiting high-level antibiotic resistance.