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Volume 21, Number 9—September 2015
THEME ISSUE
Emerging Infections Program
Emerging Infections Program

Improved Phenotype-Based Definition for Identifying Carbapenemase Producers among Carbapenem-Resistant Enterobacteriaceae

Nora Chea, Sandra N. Bulens, Thiphasone Kongphet-Tran, Ruth Lynfield, Kristin Shaw, Paula Snippes Vagnone, Marion Kainer, Daniel Muleta, Lucy Wilson, Elisabeth Vaeth, Ghinwa Dumyati, Cathleen Concannon, Erin C. Phipps, Karissa Culbreath, Sarah J. Janelle, Wendy Bamberg, Alice Y. Guh, Brandi M. Limbago, and Alexander J. KallenComments to Author 
Author affiliations: Centers for Disease Control and Prevention, Atlanta, Georgia, USA (N. Chea, S.N. Bulens, T. Kongphet-Tran, A.Y. Guh, B. Limbago, A.J. Kallen); Minnesota Department of Health, St. Paul, Minnesota, USA (R. Lynfield, K.M. Shaw, P. Snippes Vagnone); Tennessee Department of Health, Nashville, Tennessee, USA (M.A Kainer, D.B. Muleta); Maryland Emerging Infections Program, Baltimore, Maryland, USA (L. Wilson, E. Vaeth); New York–Rochester Emerging Infections Program, Rochester, New York, USA (G. Dumyati, C. Concannon); University of Rochester Medical Center, Rochester (G. Dumyati, C. Concannon); University of New Mexico, Albuquerque, New Mexico, USA (E.C. Phipps, K. Culbreath); Colorado Department of Public Health and Environment, Denver, Colorado, USA (S.J. Janelle, W.M. Bamberg)

Main Article

Table 2

Isolates used in a study evaluating phenotype-based definitions for reliability in identifying carbapenemase producers among carbapenem-resistant enterobacterial isolates from 6 US Emerging Infections Program sites, January 1, 2011–January 30, 2014

Site No. (%) isolates
 Total no. isolates, N = 312
Klebsiella spp., n = 111 Enterobacter spp., n = 103 Escherichia coli, n = 98
Minnesota 30 (27) 63 (56) 19 (17) 112
Tennessee 17 (25) 11 (16) 41 (59) 69
Maryland 48 (81) 0 11 (19) 59
New York 11 (20) 20 (38) 22 (42) 53
New Mexico 5 (33) 6 (40) 4 (27) 15
Colorado 0 3 (75) 1 (25) 4

Main Article

Page created: August 12, 2015
Page updated: August 12, 2015
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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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