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RESEARCH ARTICLE

Active screening for multiresistant Enterobacteriaceae

Paul R Ingram A B E and Jon Iredell C D F
+ Author Affiliations
- Author Affiliations

A Department of Microbiology and Infectious Diseases, Royal Perth Hospital

B School of Pathology and Laboratory Medicine, University of Western Australia

C Centre for Infectious Diseases and Microbiology, Westmead Hospital, NSW 2145, Australia

D Marie Bashir and Westmead Millennium Institutes, University of Sydney

E Email: paul.ingram@health.wa.gov.au

F Email: jonathan.iredell@sydney.edu.au

Microbiology Australia 35(1) 13-16 https://doi.org/10.1071/MA14005
Published: 5 February 2014

Abstract

The control of multiresistant organisms (MROs) is made difficult by a large reservoir of unrecognised, asymptomatic colonised patients. Hence, active screening is generally used as part of a multifaceted infection control intervention. Active screening for multiresistant Gram-negative bacteria (MRGNB) involves collection of screening specimens from patients with relevant risk factors. Positive results may result in institution of contact precautions, cohorting of patients and enhanced cleaning and surveillance. Active decolonisation is used for some Gram-positive bacteria (e.g. Staphylococcus aureus) but is not thought effective for Gram-negative bacteria, especially those in which resistance is highly transmissible (e.g. plasmid-borne). Accurate and rapid identification of positive specimens allows prompt intervention to interrupt the transmission cycle, and exclusion of MRO colonisation reduces the adverse impact on patient care and hospital workflow. Knowledge of MRO status may also improve the appropriateness of empiric antibiotic prescribing1.


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