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. 2025 May;53(5):648-651.
doi: 10.1016/j.ajic.2025.01.003. Epub 2025 Jan 11.

Hospital outbreak of NDM-producing Klebsiella pneumoniae in a surgical intensive care unit: Sink traps as the causing source of epidemic strain resurgence

Céline Bourigault  1 , Anaïs Andreo  2 , Reynald Mangeant  2 , Florence Le Gallou  2 , Géraldine Marquot  2 , Dominique Demeure Dit Latte  3 , Pierre-Joachim Mahé  3 , Gabriel Birgand  4 , Chrystèle Bidon  2 , Karim Asehnoune  3 , Stéphane Corvec  5 , Didier Lepelletier  2
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Hospital outbreak of NDM-producing Klebsiella pneumoniae in a surgical intensive care unit: Sink traps as the causing source of epidemic strain resurgence

Céline Bourigault et al. Am J Infect Control. 2025 May.

Abstract

We report the management of a New Delhi metallo-β-lactamase-producing Klebsiella pneumoniae outbreak in a surgical intensive care unit over 1 year. New Delhi metallo-β-lactamase-producing Enterobacterales were isolated from sink traps. The installation of new sink traps closed the outbreak. Environmental reservoirs should be considered for any persistent carbapenemase-producing Enterobacterales outbreak.

Keywords: Carbapenemase-producing Enterobacterales; Environmental reservoir; Outbreak.

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