High risk for nasal carriage of methicillin-resistant Staphylococcus aureus among Danish veterinary practitioners

Arshnee Moodley1, Emily C Nightingale, Marc Stegger

  • 1Department of Veterinary Pathobiology, Stigbøjlen 4, Frederiksberg C, Denmark. asm@life.ku.dk

Abstract

Insights

Veterinary professionals have a higher risk of carrying methicillin-resistant Staphylococcus aureus (MRSA). Increased awareness and preventive measures are crucial to control the spread of this antibiotic-resistant bacteria.

Area of Science:

  • Veterinary Medicine
  • Public Health
  • Infectious Diseases

Background:

  • Methicillin-resistant Staphylococcus aureus (MRSA) poses a significant public health threat due to its antibiotic resistance.
  • The emergence of MRSA in animals necessitates an investigation into occupational risks for humans.
  • Understanding MRSA transmission pathways is vital for effective public health interventions.

Purpose of the Study:

  • To assess the risk of nasal MRSA carriage among individuals with professional contact with animals.
  • To identify specific animal exposures associated with increased MRSA carriage in veterinary professionals.

Main Methods:

  • A cross-sectional study involving 702 participants at veterinary and farmer association conferences.
  • Collection of nasal swabs and data on animal exposure and MRSA risk factors.
  • Standard microbiological techniques for MRSA detection and characterization.

Main Results:

  • Veterinary practitioners showed a significantly higher rate of MRSA carriage (3.9%) compared to those without animal exposure (0.7%).
  • MRSA strains isolated from veterinarians were associated with clonal complexes previously linked to horses, small animals, and pigs.
  • Exposure to small animals, cattle, or horses, but not pigs, was identified as a significant risk factor for MRSA carriage.

Conclusions:

  • Veterinarians are identified as an occupational group at increased risk for MRSA carriage.
  • Enhanced awareness and education on preventive measures are recommended for veterinary professionals.
  • Inter-institutional collaboration is essential to manage the community spread of MRSA.

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