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Related Experiment Videos

Vancomycin-resistant enterococci isolated from animals and food.

B Robredo1, K V Singh, F Baquero

  • 1Area de Bioquímica y Biología Molecular, Universidad de La Rioja, Logroño, Spain.

International Journal of Food Microbiology
|April 25, 2000
PubMed
Summary

Vancomycin-resistant enterococci (VRE) were found in over 27% of chicken products in Spain, even after avoparcin was banned. This highlights the food chain as a potential source for VRE colonization and human infections.

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Area of Science:

  • Food safety
  • Microbiology
  • Antimicrobial resistance

Background:

  • Vancomycin-resistant enterococci (VRE) pose a significant public health threat.
  • The role of the food chain in VRE transmission requires ongoing investigation.
  • Avoparcin, a growth promoter, was banned in Europe due to concerns about antimicrobial resistance.

Purpose of the Study:

  • To investigate the prevalence of VRE in chicken products and slaughterhouse samples in Spain.
  • To characterize the VRE strains identified, including their genotypes and antimicrobial resistance patterns.
  • To assess the potential of the food chain as a source of VRE colonization in humans.

Main Methods:

  • Collection and analysis of 101 chicken products and 50 intestinal chicken samples from Spanish supermarkets and a slaughterhouse.

Related Experiment Videos

  • Detection of VRE using microbiological methods.
  • Identification of VRE species and genotyping for the vanA gene via polymerase chain reaction.
  • Antimicrobial susceptibility testing of VRE isolates.

    • Main Results:

    • VRE were detected in 27.2% of chicken food samples and 16% of intestinal chicken samples.
    • No VRE were found in cooked pork or turkey products.
    • Common VRE species included Enterococcus durans, E. faecalis, and E. faecium, all carrying the vanA genotype.
    • High rates of resistance to ampicillin, quinupristin/dalfopristin, and aminoglycosides were observed.

    Conclusions:

    • Chicken products and slaughterhouse samples are significant reservoirs for vanA-containing VRE.
    • The food chain, particularly chicken, may serve as a route for VRE colonization in humans.
    • Continued surveillance is crucial to monitor VRE prevalence and mitigate risks associated with antimicrobial resistance in food products.