Outbreak of NDM-1-producing Enterobacteriaceae in northern Italy, July to August 2011

P Gaibani; S Ambretti; A Berlingeri; M Cordovana; P Farruggia; M Panico; M P Landini; V Sambri

doi:10.2807/ese.16.47.20027-en

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Outbreak of NDM-1-producing Enterobacteriaceae in northern Italy, July to August 2011
P Gaibani^1,2 , S Ambretti^1,2 , A Berlingeri¹ , M Cordovana¹ , P Farruggia³ , M Panico³ , M P Landini¹ , V Sambri¹
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Affiliations: ¹ Operative Unit of Clinical Microbiology, S. Orsola-Malpighi University Hospital, Bologna, Italy ² These authors contributed equally to this paper ³ Bellaria Hospital, Bologna, Italy

Correspondence:
V Sambri
vittorio.sambri unibo.it
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Citation style for this article: Gaibani P, Ambretti S, Berlingeri A, Cordovana M, Farruggia P, Panico M, Landini M P, Sambri V. Outbreak of NDM-1-producing Enterobacteriaceae in northern Italy, July to August 2011. Euro Surveill. 2011;16(47):pii=20027. https://doi.org/10.2807/ese.16.47.20027-en Received: 18 Nov 2011

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Abstract

Between July 2011 and August 2011, the New Delhi metallo-beta-lactamase 1 (NDM-1) gene was detected in Klebsiella pneumoniae and Escherichia coli isolates obtained from six patients hospitalised in four healthcare facilities in northern Italy. The patient who had been hospitalised in New Delhi, India, from February to May 2011 and subsequently in the Bologna area, Italy, from May to July 2011, may have been the source of the outbreak. Our findings suggest ongoing spread of this carbapenem-resistance gene in Italy and highlight the need for intensive surveillance.