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Journal of Clinical Microbiology, September 2009, p. 3024-3025, Vol. 47, No. 9
0095-1137/09/$08.00+0     doi:10.1128/JCM.01033-09
Copyright © 2009, American Society for Microbiology. All Rights Reserved.

Failure of the MicroScan WalkAway System To Detect Heteroresistance to Carbapenems in a Patient with Enterobacter aerogenes Bacteremia{triangledown}

N. C. Gordon1 and D. W. Wareham1,2*

Division of Infection, Barts & The London NHS Trust, London, United Kingdom,1 Centre for Infectious Disease, Institute of Cell and Molecular Science, Barts & The London School of Medicine and Dentistry, Queen Mary University of London, London, United Kingdom2

Received 25 May 2009/ Returned for modification 8 July 2009/ Accepted 16 July 2009

We report the failure of the automated MicroScan WalkAway system to detect carbapenem heteroresistance in Enterobacter aerogenes. Carbapenem resistance has become an increasing concern in recent years, and robust surveillance is required to prevent dissemination of resistant strains. Reliance on automated systems may delay the detection of emerging resistance.

* Corresponding author. Mailing address: Centre for Infectious Disease, Institute of Cell and Molecular Science, 4 Newark Street, Whitechapel, London E1 2AT, United Kingdom. Phone: 44(0)20 7882 2317. Fax: 44(0)20 7882 2181. E-mail: d.w.wareham{at}qmul.ac.uk

{triangledown} Published ahead of print on 29 July 2009.

Journal of Clinical Microbiology, September 2009, p. 3024-3025, Vol. 47, No. 9
0095-1137/09/$08.00+0     doi:10.1128/JCM.01033-09
Copyright © 2009, American Society for Microbiology. All Rights Reserved.





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