Methicillin-resistant Staphylococcus aureus ST398 in swine farm personnel, Belgium

Area of Science:

• Veterinary Medicine
• Public Health
• Infectious Diseases

Background:

• Methicillin-resistant Staphylococcus aureus (MRSA) is a significant pathogen in both human and animal health.
• The ST398 strain of MRSA is frequently associated with livestock, particularly pigs.
• Understanding MRSA transmission dynamics between animals and humans is crucial for effective control strategies.

Purpose of the Study:

• To investigate the prevalence of MRSA ST398 carriage in people working on swine farms in Belgium.
• To identify risk factors associated with MRSA ST398 colonization in this population.

Main Methods:

• Cross-sectional study involving surveys and sample collection from individuals on 49 swine farms in Belgium.
• Data collection on potential risk factors including animal contact, hygiene practices, and farm environment.

Main Results:

• MRSA ST398 was detected in 37.8% of the surveyed individuals.
• A concurrent skin infection was observed in 0.8% of participants.
• Significant risk factors for MRSA carriage included the presence of MRSA in pigs, frequent contact with pigs and companion animals, and the non-use of protective clothing.

Conclusions:

• Swine farms represent a reservoir for MRSA ST398, with a high prevalence of carriage in farm workers.
• Direct and indirect contact with pigs and other animals are significant drivers of MRSA transmission to humans.
• Implementing biosecurity measures and personal protective equipment may help reduce MRSA colonization in farm personnel.