Detection of livestock-associated methicillin-resistant Staphylococcus aureus among swine workers in Romania

J Infect Public Health. 2014 Jul-Aug;7(4):323-32. doi: 10.1016/j.jiph.2014.03.008. Epub 2014 May 10.

Abstract

Background: Methicillin-resistant Staphylococcus aureus (MRSA) is a devastating pathogen that is associated with high morbidity and mortality worldwide. Livestock are a well-known reservoir for this pathogen, which poses substantial health risks for livestock workers. Little is known about the epidemiology of livestock-associated MRSA (LA-MRSA) among livestock workers in Eastern Europe.

Methods: To study the epidemiology of LA-MRSA among swine workers in Romania, we collected and characterized nasal and oropharygneal samples from swine workers on commercial pig farms. A survey that included questions about work-related tasks, biosafety practices, contact with animals, and health status was used to assess the risk factors that were potentially associated with LA-MRSA colonization.

Results: The prevalence of MRSA colonization among swine workers was 6.8%. Two LA-MRSA strains with the spa types t034 and t011 and one likely community-associated MRSA strain with the spa type t321 were isolated from workers on five farms. Interestingly, all MRSA carriers worked on farms that imported animals from other production facilities.

Conclusion: This is the first study to confirm the presence of LA-MRSA among swine workers in Romania and suggests the need to minimize the risk of LA-MRSA-related infections in swine workers and their community contacts. The findings also suggest a link between the commercial movement of swine and the introduction of LA-MRSA.

Keywords: Antimicrobial resistance; Methicillin-resistant Staphylococcus aureus (MRSA); Occupational exposure; Swine; Zoonoses.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Adult
  • Agriculture
  • Animal Husbandry*
  • Animals
  • Carrier State / epidemiology*
  • Carrier State / microbiology
  • Female
  • Humans
  • Livestock
  • Male
  • Methicillin-Resistant Staphylococcus aureus / classification
  • Methicillin-Resistant Staphylococcus aureus / genetics
  • Methicillin-Resistant Staphylococcus aureus / isolation & purification*
  • Middle Aged
  • Molecular Typing
  • Nasal Mucosa / microbiology
  • Occupational Exposure*
  • Oropharynx / microbiology
  • Prevalence
  • Romania / epidemiology
  • Staphylococcal Infections / epidemiology*
  • Staphylococcal Infections / microbiology
  • Staphylococcal Protein A / genetics
  • Surveys and Questionnaires
  • Swine*

Substances

  • Staphylococcal Protein A