Livestock-assoziierter Methicillin-resistenter Staphylococcus aureus – Erhebung einer orthopädischen Fachklinik im Hochrisikogebiet Nord-West

Abstract

Background MRSA represents a considerable health threat to orthopaedic patients. Throughout the last decade, livestock-associated MRSA emerged increasingly in livestock all over Europe. LA-MRSA broke the species barrier, colonizing and causing infections in humans. Nevertheless, to date there are no studies concerning livestock-associated MRSA and orthopaedic patients. Therefore, we aimed to investigate the prevalence of LA-MRSA in a regional orthopaedic department localized in an area with high-density livestock. Patients and Methods 1544 persons were enrolled in this prospective study. Nasal swabs and questionnaires were collected in patients admitted to the orthopaedic hospital. Nasal carriage was assessed by using selective MRSA agars. MRSA-positive samples were spa typed. Results Overall, the prevalence of MRSA carriage was 3.3%, nearly all spa types were indicative for LA-MRSA. 91% of all LA-MRSA carriers had contact to livestock during the last 6 months before testing. Conclusion Livestock-associated MRSA emerged rapidly over the last few years and will contribute substantially to MRSA infection rates in orthopaedic hospitals. Livestock-associated patients must be screened before admission in order to control infectious complications.