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Methicillin-resistant Staphylococcus aureus in people living and working in pig farms

  • I. V. F. VAN DEN BROEK (a1), B. A. G. L. VAN CLEEF (a1), A. HAENEN (a1), E. M. BROENS (a2) (a3), P. J. VAN DER WOLF (a4), M. J. M. VAN DEN BROEK (a5), X. W. HUIJSDENS (a6), J. A. J. W. KLUYTMANS (a7), A. W. VAN DE GIESSEN (a8) and E. W. TIEMERSMA (a1)...

We compared the prevalence of human and animal methicillin-resistant Staphylococcus aureus (MRSA) at pig farms in The Netherlands, and related this to individual and farm-level characteristics. More than half of the farms investigated (28/50) had MRSA in pigs or stable dust and about one third (15/50) of person(s) were identified as MRSA carriers. Human carriage was found only on farms with MRSA-positive pigs or dust. MRSA strains in human samples were the same spa-type as found in pigs and all were not typable by pulsed-field gel electrophoresis (NT-MRSA). Multivariate analyses showed that risk factors for human MRSA carriage were: working in pig stables (OR 40, 95% CI 8–209) and the presence of sows and finishing pigs (OR 9, 95% CI 3–30). Veterinary sample collectors sampling the pigs showed transient MRSA carriage only during the day of the farm visit. Working in pig stables with MRSA-positive pigs poses a high risk for acquiring MRSA, increasingly so when contact with live pigs is more intensive or long lasting.

Corresponding author
*Author for correspondence: Dr I. V. F. van den Broek, RIVM-EPI, Mailbox 1/pb 75, 3720 BA, Bilthoven, The Netherlands. (Email:
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1.MP Jevons . Celbenin-resistant staphylococci. British Medical Journal 1961; 1: 124125.

3. MF Kluytmans-Vandenbergh , JA Kluytmans . Community-acquired methicillin-resistant Staphylococcus aureus: current perspectives. Clinical Microbiology and Infection 2006; 12 Suppl 1: 915.

4. HF Wertheim , Low prevalence of methicillin-resistant Staphylococcus aureus at hospital admission in the Netherlands: the value of search and destroy and restrictive antibiotic use. Journal of Hospital Infection 2004; 56: 321325.

5. EARSS. Annual report 2006, EARSS, Bilthoven, The Netherlands, October 2007. (

6. A Voss , Methicillin-resistant Staphylococcus aureus in pig farming. Emerging Infectious Diseases 2005; 11: 19651966.

7. CPM Bens , A Voss , CHW Klaassen . Presence of a novel DNA methylation enzyme in methicillin-resistant Staphylococcus aureus isolates associated with pig farming leads to un-interpretable results in standard pulsed-field gel electrophoresis analysis. Journal of Clinical Microbiology 2006; 44: 18751876.

8. XW Huijsdens , Community-acquired MRSA and pig farming. Annals of Clinical Microbiology and Antimicrobials 2006; 5: 26.

10. M Wulf , Methicillin-resistant Staphylococcus aureus in veterinary doctors and students, the Netherlands. Emerging Infectious Diseases 2006; 12: 19391941.

11.E van Duijkeren , Methicillin-resistant Staphylococcus aureus in pigs with exudative epidermitis. Emerging Infectious Diseases 2007; 13: 14081410.

12.AJ de Neeling , High prevalence of methicillin resistant Staphylococcus aureus in pigs. Veterinary Microbiology 2007; 122: 366372.

13. I Van Loo , Emergence of methicillin-resistant Staphylococcus aureus of animal origin in humans. Emerging Infectious Diseases 2007; 13: 18341839.

15.MM Van Rijen , PH Van Keulen , JA Kluytmans . Increase in a Dutch hospital of methicillin-resistant Staphylococcus aureus related to animal farming. Clinical Infectious Diseases 2008; 46: 261263.

16.L Armand-Lefevre , R Ruimy , A Andremont . Clonal comparison of Staphylococcus aureus isolates from healthy pig farmers, human controls and pigs. Emerging Infectious Diseases 2005; 11: 711714.

17.W Witte , Methicillin-resistant Staphylococcus aureus ST398 in humans and animals, Central Europe. Emerging Infectious Diseases 2007; 13: 255258.

18.L Guardabassi , M Stegger , R Skov . Retrospective detection of methicillin resistant and susceptible Staphylococcus aureus ST398 in Danish slaughter pigs. Veterinary Microbiology 2007; 122: 384386.

20.BA Hanselman , Methicillin-resistant Staphylococcus aureus colonization in veterinary personnel. Emerging Infectious Diseases 2006; 12: 19331938.

21. T Khanna , Methicillin resistant Staphylococcus aureus colonization in pigs and pig farmers. Veterinary Microbiology 2008; 128: 298303.

23.AJ de Neeling , Resistance of staphylococci in The Netherlands: surveillance by an electronic network during 1989–1995. Journal of Antimicrobial Chemotherapy 1998; 41: 93101.

24. G Lina , Involvement of Panton-Valentine leukocidin-producing Staphylococcus aureus in primary skin infections and pneumonia. Clinical Infectious Diseases 1999; 29: 11281132.

25.D Harmsen , Typing of methicillin-resistant Staphylococcus aureus in a university hospital setting by using novel software for spa repeat determination and database management. Journal of Clinical Microbiology 2003; 41: 54425448.

26. S Murchan , Harmonization of pulsed-field gel electrophoresis protocols for epidemiological typing of strains of methicillin-resistant Staphylococcus aureus: a single approach developed by consensus in 10 European laboratories and its application for tracing the spread of related strains. Journal of Clinical Microbiology 2003; 41: 15741585.

27. D Mertz , Throat swabs are necessary to reliably detect carriers of Staphylococcus aureus. Clinical Infectious Diseases 2007; 45: 475477.

28.E van Duijkeren , Transmission of methicillin-resistant Staphylococcus aureus strains between different kinds of pig farms. Veterinary Microbiology 2008; 126: 383389.

29.W Dansby , Aerosolization of methicillin-resistant Staphylococcus aureus during an epidemic in a burn intensive care unit. Journal of Burn Care and Research 2008; 29: 331337.

31.J Kluytmans , A van Belkum , H Verbrugh . Nasal carriage of Staphylococcus aureus: epidemiology, underlying mechanisms, and associated risks. Clinical Microbiology Reviews 1997; 10: 505520.

32.JL Nouwen , Predicting the Staphylococcus aureus nasal carrier state: derivation and validation of a ‘culture rule’. Clinical Infectious Diseases 2004; 39: 806811.

35.A van Belkum , On behalf of the Dutch working party on surveillance and research of MRSA. Methicillin-resistant and -susceptible Staphylococcus aureus sequence type 398 in pigs and humans. Emerging Infectious Diseases 2008; 14: 479483.

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Epidemiology & Infection
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