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Descriptive Analysis of Antibiotic-Resistant Patterns of Methicillin-Resistant Staphylococcus aureus (MRSA) st398 Isolated from Healthy Swine

Author

Listed:
  • Ana Morcillo

    (Department of Preventive Medicine and Public Health, University of La Laguna, Canary Islands 38071, Spain)

  • Beatriz Castro

    (University Hospital of the Canary Islands, San Cristóbal de La Laguna, Tenerife, Canary Islands 38320, Spain)

  • Cristobalina Rodríguez-Alvarez

    (Department of Preventive Medicine and Public Health, University of La Laguna, Canary Islands 38071, Spain)

  • Rossana Abreu

    (Department of Preventive Medicine and Public Health, University of La Laguna, Canary Islands 38071, Spain)

  • Armando Aguirre-Jaime

    (Nuestra Señora de la Candelaria University Hospital, Santa Cruz de Tenerife 38010, Spain)

  • Angeles Arias

    (Department of Preventive Medicine and Public Health, University of La Laguna, Canary Islands 38071, Spain)

Abstract

Background : Livestock-associated methicillin-resistant Staphylococcus aureus (MRSA) such as the MRSA ST398 strain has spread all over the World and the most worrying aspect of this fact appears to be its capacity to easily spread to humans. The excessive use of antibiotics has made swine a reservoir of MRSA. The aim of the present study was to determine the antibiotic resistance profile of MRSA samples isolated from healthy swine of the island of Tenerife (Spain). Methods : A total of 256 MRSA isolates from swine samples and five MRSA isolates from pig worker samples were investigated for MRSA antibiotic resistant patterns. Results : Analysis of the susceptibility status of MRSA pig isolates revealed that 39 isolates were resistant to one antibiotic, 71 isolates were resistant to two antibiotics and 96 isolates were resistant to three or more antibiotics. SCC mec typing revealed the presence of types IV and V. Isolates having SCC mec IV had an increased resistance to the antimicrobial agents tested than those having SCC mec V. We observed significant differences when comparing the most common resistance patterns and SCC mec type. Conclusions : MRSA isolated from humans showed similar resistance to those isolated from pigs, excepting erythromycin, since all the workers’ isolates were sensitive to this antibiotic. The evolution of new MRSA clones has emphasized the need for infection control practices in animals and humans in close contact.

Suggested Citation

  • Ana Morcillo & Beatriz Castro & Cristobalina Rodríguez-Alvarez & Rossana Abreu & Armando Aguirre-Jaime & Angeles Arias, 2015. "Descriptive Analysis of Antibiotic-Resistant Patterns of Methicillin-Resistant Staphylococcus aureus (MRSA) st398 Isolated from Healthy Swine," IJERPH, MDPI, vol. 12(1), pages 1-12, January.
    • Handle: RePEc:gam:jijerp:v:12:y:2015:i:1:p:611-622:d:44554
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    References listed on IDEAS

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    1. Beth Mole, 2013. "MRSA: Farming up trouble," Nature, Nature, vol. 499(7459), pages 398-400, July.
    2. Haitske Graveland & Jaap A Wagenaar & Hans Heesterbeek & Dik Mevius & Engeline van Duijkeren & Dick Heederik, 2010. "Methicillin Resistant Staphylococcus aureus ST398 in Veal Calf Farming: Human MRSA Carriage Related with Animal Antimicrobial Usage and Farm Hygiene," PLOS ONE, Public Library of Science, vol. 5(6), pages 1-6, June.
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    More about this item

    Keywords

    MRSA; SCC mec ; ST398; swine; antibiotic resistant;
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