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Related Experiment Videos

Decrease of vancomycin-resistant enterococci in poultry meat after avoparcin ban.

A Pantosti, M Del Grosso, S Tagliabue

    Lancet (London, England)
    |September 4, 1999
    PubMed
    Summary
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    In Italy, the percentage of poultry meat contaminated with vancomycin-resistant enterococci carrying the vanA gene significantly decreased 18 months after the avoparcin ban. This demonstrates the positive impact of antimicrobial stewardship on food safety.

    Area of Science:

    • Veterinary Medicine
    • Microbiology
    • Food Safety

    Background:

    • Avoparcin, a crucial antibiotic in poultry farming, has been linked to the rise of vancomycin-resistant enterococci (VRE).
    • The vanA gene confers resistance to vancomycin, a critical antibiotic for human medicine.
    • Enterococci are common bacteria found in animal and human gut microbiota.

    Discussion:

    • This study evaluated the effectiveness of the avoparcin ban in Italy on reducing VRE prevalence in poultry.
    • Data was collected 18 months post-ban to assess the long-term impact.
    • The prevalence of vanA gene-positive VRE in poultry meat samples was monitored.

    Key Insights:

    • Following the avoparcin ban, poultry meat samples positive for vanA gene-carrying VRE decreased from 14.6% to 8%.

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  • This significant reduction highlights the direct correlation between avoparcin usage and VRE contamination in the poultry supply chain.
  • The findings underscore the success of regulatory interventions in mitigating antimicrobial resistance.

    • Outlook:

    • Continued surveillance is essential to monitor VRE trends and ensure sustained reduction.
    • Further research could explore alternative growth promoters and their impact on gut microbiota.
    • Implementing comprehensive antimicrobial stewardship programs across livestock sectors is recommended to combat resistance.