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Volume 27, Number 9—September 2021
Dispatch

Gram-Negative Bacteria Harboring Multiple Carbapenemase Genes, United States, 2012–2019

D. Cal HamComments to Author , Garrett Mahon, Sandeep K. Bhaurla, Sam Horwich-Scholefield, Liore Klein, Nychie Dotson, J. Kamile Rasheed, Gillian McAllister, Richard A. Stanton, Maria Karlsson, David Lonsway, Jennifer Y. Huang, Allison C. Brown, and Maroya Spalding Walters
Author affiliations: Centers for Disease Control and Prevention, Atlanta, Georgia, USA (D.C. Ham, G. Mahon, J.K. Rasheed, G. McAllister, R.A. Stanton, M. Karlsson, D. Lonsway, J.Y. Huang, A.C. Brown, M.S. Walters); Los Angeles County Department of Public Health, Los Angeles, California, USA (S.K. Bhaurla); California Department of Public Health, Richmond, California, USA (S. Horwich-Scholefield); Maryland Department of Health, Baltimore, Maryland, USA (L. Klein); Florida Department of Health, Tallahassee, Florida, USA (N. Dotson)

Main Article

Table 1

Incident cases of gram-negative bacilli harboring multiple carbapenemase genes, United States, January 2012–April 2019*

Organism Carbapenemase combinations
 Total, N = 105
NDM + OXA-48–like KPC + NDM KPC + VIM NDM + VIM KPC + OXA-48–like NDM + IMP NDM + OXA-23 NDM + OXA-48–like + VIM
Enterobacterales 64 23 6 0 2 0 0 1 96
Citrobacter freundii 0 0 1 0 1 0 0 0 2
Enterobacter cloacae 0 8 1 0 0 0 0 0 9
Escherichia coli 17 3 0 0 0 0 0 0 20
Klebsiella aerogenes 0 0 1 0 0 0 0 0 1
K. oxytoca 0 0 1 0 0 0 0 0 1
K. pneumoniae 46 12 2 0 1 0 0 1 62
Providencia rettgeri
 1
 0
 0
 0
 0
 0
 0
 0
 1
Pseudomonadales 0 0 1 4 0 2 2 0 9
Pseudomonas aeruginosa 0 0 1 3 0 2 0 0 6
Pseudomonas fluorescens 0 0 0 1 0 0 0 0 1
Acinetobacter baumannii 0 0 0 0 0 0 2 0 2

*IMP, active-on-imipenem metallo-β-lactamase; KPC, Klebsiella pneumoniae carbapenemase; NDM, New Delhi metallo-β-lactamase; OXA, oxacillinase; VIM, Verona integron-encoded metallo-β-lactamase.

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Page created: August 11, 2021
Page updated: August 19, 2021
Page reviewed: August 19, 2021
The conclusions, findings, and opinions expressed by authors contributing to this journal do not necessarily reflect the official position of the U.S. Department of Health and Human Services, the Public Health Service, the Centers for Disease Control and Prevention, or the authors' affiliated institutions. Use of trade names is for identification only and does not imply endorsement by any of the groups named above.
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