Methicillin-Resistant Staphylococcus aureus in Saarland, Germany: The Long-Term Care Facility Study

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Background:
Multiresistant organisms pose a threat for patients and care recipients. Control interventions need to be tailored to region, the type of institution considered, and risk factors. The German state of Saarland is ideally suited to study colonisation epidemiology throughout its various health and care institutions. After conclusion of a large admission prevalence study in acute care hospitals, we now performed a methicillin-resistant Staphylococcus aureus (MRSA) point prevalence study in Saarland long term care facilities (LTCF), allowing for a direct comparison with respect of MRSA prevalence and associated risk factors between these two institutional types located within a confined region.

Methodology and Principal Findings:
Of all LTCF of the region, 65/136 participated in the study performed between 09/2013 and 07/2014. Overall, complete microbiological specimen and questionnaires of 2,858 of 4,275 (66.8%) LTCF residents were obtained. 136/2,858 (4.8%) screened residents revealed MRSA carrier status. Multivariate risk factor analysis yielded ulcer/deep soft tissue infection, urinary tract catheter, and MRSA history with multiple MRSA decolonisation cycles to be independently associated with MRSA carrier status.

Conclusion:
As already known from previous studies, colonisation with MRSA is common in LTCF residents even in an area with relatively low MRSA prevalence. This found prevalence can now be related to the acute care admission prevalence (2.2%) as well as to the admission prevalence in acute care geriatric departments (7.6%). The common clonal attribution (spatype) of MRSA isolates prevalent in the LTCF population as well as in the acute care admission population points towards a close relationship between both types of institutions. However, the ostensible absence of risk factors such as “previous hospitalisation” in conjunction with newly identified factors such as “multiple decolonisation cycles” refers to MRSA colonisation risks independent of contact with acute care facilities. Overall, this large LTCF point prevalence study allows data-based, region-tailored decisions on MRSA screening policies and provides a basis for additional preventative measures.

Autoři: Dorothea Nillius ^1*; Lutz Von Müller¤ ¹; Stefan Wagenpfeil ²; Renate Klein ³; Mathias Herrmann ¹
Působiště autorů: Institute and State Laboratory of Medical Microbiology and Hygiene, Saarland University and Saarland University Medical Centre, Homburg, Germany ¹; Institute of Medical Biometry, Epidemiology, and Medical Informatics, Saarland University, Homburg, Germany ²; Saarland Ministry of Social Affairs, Health, Women, and Family, Saarbrücken, Germany ³
Vyšlo v časopise: PLoS ONE 11(4)
Kategorie: Research article
prolekare.web.journal.doi_sk: https://doi.org/10.1371/journal.pone.0153030

© 2016 Nillius et al. This is an open access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
The electronic version of this article is the complete one and can be found online at: http://journals.plos.org/plosone/article?id=10.1371%2Fjournal.pone.0153030

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