engleski

The presence of methicillin resistant Staphylococcus aureus at large pig breeding farms in Croatia

Methicillin resistant Staphylococcus aureus (MRSA) have emerged worldwide and have become resistant to a variety of antibiotics. MRSA colonisation in pigs was first reported in the Netherlands at 2005, where pigs were implicated as a source of human MRSA infections (Voss et al., 2005). This paper presents the first report of the presence of MRSA at large pig breeding farms in Croatia, the determination of mecA gene, spa typing and determination of susceptibility to commonly used antimicrobials. Dust samples were collected from eight large pig farms in Croatia. On each farm, between 7 and 11 samples were taken. Of the total 68 swabs, the mecA gene was detected in 24 isolates growing on the MRSA agar. All isolates are resistant to oxacillin, tetracycline and streptomycin, and susceptible only to vancomycin, while 92% of strains were susceptible to ciprofloxacin. Genotyping of the MRSA strains was performed by spa typing, and revealed t011 (n=17), t034 (n=5) and t1451 (n=2). The results presented here predict that MRSA is present on a large number of pig farms in Croatia.

methicilin resistant Staphylococcus aureus; pigs; antimicrobial susceptibility

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