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One-day point prevalence of emerging bacterial pathogens in four secondary and five tertiary care German hospitals – results from a pilot study of the German Society for Hospital Hygiene (Deutsche Gesellschaft für Krankenhaushygiene, DGKH)

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Author(s): Kramer, Axel | Ryll, Sylvia | Wegner, Christian | Jatzwauk, Lutz | Popp, Walter | Hübner, Nils-Olaf

Journal: GMS Krankenhaushygiene Interdisziplinär
ISSN 1863-5245

Volume: 6;
Issue: 1;
Start page: Doc20;
Date: 2011;
Original page

Keywords: one-day point prevalence | MRSA | ESBL | E. coli | Klebsiella | multiresistance | Pseudomonas spp. | Acinetobacter spp. | VRE | Clostridium difficile | infection prevention personnel | DGKH

ABSTRACT
Objective: Data on the prevalence of emerging bacterial pathogens like extended-spectrum-lactamase-building (ESBL) Gram negative organisms, multiresistant Pseudomonas and Acinetobacter species or toxin-building Clostridium difficile in German hospitals are sparse. To provide data for different regions in Germany, a one-day point prevalence study with five tertiary care hospitals and four secondary care hospitals was conducted on the 10th of February 2010. Method: For participating hospitals, the level of care (primary/secondary/tertiary), staffing with infection prevention personnel, availability of a MRSA-screening, microbiological support and the prevalence of five emerging bacterial pathogens in intensive care, surgical and medical wards was assessed by questionnaire. Results: Overall, 3411 patients were included. In tertiary hospitals, the following prevalences were given: MRSA 1.8%, ESBL E. coli 0.45%, ESBL Klebsiella spp. 0.41%, multiresistant Pseudomonas 0.53%, multiresistant Acinetobacter species 0.15%, VRE 0.49% und Clostridium difficile 1.01%. In secondary hospitals, as prevalences resulted for MRSA 3.48%, ESBL E. coli 0.4%, ESBL Klebsiella spp. 0.4%, multiresistant Pseudomonas 0%, multiresistant Acinetobacter species 0%, VRE 0.13% und Clostridium difficile 1.34%. Discussion: The prevalence of MRSA found is comparable to other prevalence studies published in the last years, but remarkably higher than reported by the German National Surveillance System (KISS). As no prevalence data for other pathogens as MRSA could be found, only data from the ITS-KISS are available for comparison. Again, the prevalences found in the present study are much higher than reported by the KISS. Whether this is by chance or indicates a systematic underreporting in the KISS remains unclear. Conclusion: The results from this one day point prevalence study show that prevalences of emerging bacterial pathogens differ markedly between regions, departments and hospitals. This can be explained by regional, methodical and other difference associated with the level of care provided by these hospitals. Still, the prevalences found fit well to other prevalence studies from the last years but are remarkably higher than to be expected by the KISS. As questionnaire-based one-day prevalence studies have been shown to be inexpensive and feasible, such studies, using a fixed day and protocol, should be extendedly used in the future to collect representative data for Germany. By such initiatives, scientific societies as the DGKH can take part in collecting valuable epidemiological data of emerging bacterial pathogens.
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