Prevalence and Molecular Characteristics of Methicillin-Resistant Staphylococcus aureus (MRSA) in Organic Pig Herds in The Netherlands

Authors

  • L. P. L. van de Vijver,

    Corresponding author
    1. Department of Nutrition and Health, Louis Bolk Institute, Driebergen, The Netherlands
    • Correspondence:

      P. Tulinski. Faculty of Veterinary Medicine, Department of Infectious Diseases and Immunology, Utrecht University, Yalelaan 1, 3584 CL Utrecht, The Netherlands. Tel.: +3130 2534330; Fax: +31 30 253 3199; E-mail: p.tulinksi@tudelft.nl

      and

      L. P. L. van de Vijver, Louis Bolk Institute, Hoofdstraat 24, 3972 LA Driebergen, The Netherlands. Tel.: + 31 343 523872; Fax: +31 343 515611; E-mail: l.vandevijver@louisbolk.nl

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    • These authors equally contributed to this work.
  • P. Tulinski,

    Corresponding author
    1. Faculty of Veterinary Medicine, Department of Infectious Diseases and Immunology, Utrecht University, Utrecht, The Netherlands
    • Correspondence:

      P. Tulinski. Faculty of Veterinary Medicine, Department of Infectious Diseases and Immunology, Utrecht University, Yalelaan 1, 3584 CL Utrecht, The Netherlands. Tel.: +3130 2534330; Fax: +31 30 253 3199; E-mail: p.tulinksi@tudelft.nl

      and

      L. P. L. van de Vijver, Louis Bolk Institute, Hoofdstraat 24, 3972 LA Driebergen, The Netherlands. Tel.: + 31 343 523872; Fax: +31 343 515611; E-mail: l.vandevijver@louisbolk.nl

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    • These authors equally contributed to this work.
  • N. Bondt,

    1. LEI, Agricultural Economics Research Institute of Wageningen University and Research Centre, The Hague, The Netherlands
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  • D. Mevius,

    1. Faculty of Veterinary Medicine, Department of Infectious Diseases and Immunology, Utrecht University, Utrecht, The Netherlands
    2. Central Veterinary Institute of Wageningen University and Research Centre, Lelystad, The Netherlands
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  • C. Verwer

    1. Department of Animal and Environment, Louis Bolk Institute, Driebergen, The Netherlands
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Summary

The prevalence of the methicillin-resistant Staphylococcus aureus (MRSA) among conventional pig herds in the Netherlands is high (around 71%). Nevertheless, information about the prevalence of MRSA among organic pig herds is lacking. Here, we report a study on 24 of the 49 organic pig herds in the Netherlands. The prevalence of MRSA positive herds showed to be 21%. The genetic characteristics of the MRSA isolates were similar to MRSA CC398 described in conventional pigs except one exceptional HA-MRSA CC30 found in one herd, which was presumably caused by human to animal transmission. This resulted in a prevalence of MRSA CC398 in the organic herds of 16.7%.

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