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Epidemiol Infect. 2013 Jun;141(6):1199-206. doi: 10.1017/S0950268812001999. Epub 2012 Sep 7.

Prevalence, risk factors and molecular epidemiology of methicillin-resistant Staphylococcus aureus (MRSA) colonization in residents of long-term care facilities in Luxembourg, 2010.

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Surveillance & Epidemiology of Infectious Diseases, National Health Laboratory, Luxembourg.


A prevalence survey of methicillin-resistant Staphylococcus aureus (MRSA) was performed in 2010 in 19 long-term care facilities in Luxembourg. Of the 954 participating residents, 69 (7·2%) were colonized by MRSA. Previous history of MRSA [odds ratio (OR) 7·20, 95% confidence interval (CI) 3·19-16·27], quinolone therapy in the previous year (OR 2·27, 95% CI 1·17-4·41) and ≥24 h care administered per week (OR 4·29, 95% CI 1·18-15·56) were independent risk factors for MRSA colonization. More than 75% of strains were of clonal complex (CC)5, mainly spa-type t003 or sequence type (ST)225 and ST710, which is a rapidly emerging lineage prevalent in central Europe. Five residents were colonized by livestock-associated genotypes belonging to CC398. Previously dominant CC8 strains have recently been replaced by more resistant CC5 strains in Luxembourg.

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