MRSA diversity and the emergence of LA-MRSA in a large teaching hospital in Slovenia

Kevorkijan, Božena Kotnik and Petrovič, Živa and Kocuvan, Aleksander and Rupnik, Maja (2019) MRSA diversity and the emergence of LA-MRSA in a large teaching hospital in Slovenia. Acta Microbiologica et Immunologica Hungarica, 66 (2). pp. 235-246. ISSN 1217-8950

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Abstract

The methicillin-resistant Staphylococcus aureus (MRSA) is one of the major causes of a variety of infections in hospitals and the community. One of the most prominent changes in the MRSA epidemiology is the emergence of livestock-associated MRSA (LA-MRSA) strains in the human population. The aim of this study was to follow the MRSA epidemiology in a large teaching hospital during an 8-year time period (2006–2013). Altogether 519 MRSA, cultured from screening or clinical samples, were distributed into 77 spa types, of which three (t003 and t001, associated with CC5; and t015; associated with CC45) were the most common. LA-MRSA-associated spa types (t011, t034, t108, t899; associated with CC398) started to emerge in the year 2009 and continued to be found annually at a frequency from 3.9% to 12.7% of all MRSA strains examined. Only 6 of 27 LA-MRSA strains were associated with infections.

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