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Brief Report

Screening of ESBL-producing Enterobacteriacae concomitant with low degree of transmission in intensive care and bone marrow transplant units

, , , , , , & show all
Pages 405-409 | Received 24 Oct 2016, Accepted 10 Dec 2016, Published online: 10 Jan 2017
 

Abstract

Background: Extended-spectrum β-lactamase-producing Enterobacteriaceae (ESBL-E) are spreading worldwide in both hospital and community settings. In this study, the molecular epidemiology and the transmission modalities of ESBL-E in intensive care- and bone marrow transplant were investigated.

Methods: All patients included in this study were screened for presence of ESBL-E on admission and weekly. Relevant β-lactamase genes were identified by PCR and sequencing.

Results: A total of 669 patients were included in this study. On admission, ESBL-producing Escherichia coli were detected in 49 (7.3%) patients and ESBL-producing Klebsiella pneumoniae in one patient. The most common ESBL types among E. coli isolates were CTX-M-15 (38.8%) and CTX-M-1 (38.8%). Furthermore, 12 of 49 (24.5%) ESBL-producing E. coli could be assigned to the epidemic clone ST131. A single patient acquired ESBL-producing E. coli during the hospital stay but cross-transmission could not be demonstrated. Among 1095 environmental samples none revealed ESBL.

Conclusions: Our results suggest that early detection of ESBL-producing Enterobacteriaceae and consequent implementation of basic hygiene measures and contact isolation may reduce the transmission rate during the hospital stay.

Acknowledgements

We thank Heike Dokter-Heubeck, Christiane Förstel, Sylvia Kosczor and Alexandra Scudlo for excellent technical assistance.

Disclosure statement

The authors report no conflicts of interest. The authors alone are responsible for the content and writing of this report.

Additional information

Funding

This work was partly funded by a grant [no. G46h-G8110.3 – 2014/40-6] of the Bavarian State Ministry of Health and Care.

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