Volume 19, Number 11—November 2013
Research
CTX-M β-Lactamase–producing Klebsiella pneumoniae in Suburban New York City, New York, USA
Guiqing Wang
, Tiangui Huang, Pavan Kumar Makam Surendraiah, Kemeng Wang, Rashida Komal, Jian Zhuge, Chian-Ru Chern, Alexander A. Kryszuk, Cassidy King, and Gary P. Wormser
, Tiangui Huang, Pavan Kumar Makam Surendraiah, Kemeng Wang, Rashida Komal, Jian Zhuge, Chian-Ru Chern, Alexander A. Kryszuk, Cassidy King, and Gary P. Wormser
Table 2
Detection of blaESBL genes of the SHV, TEM, and CTX-M types in 163 ESBL-producing Escherichia coli clinical isolates, 2005–2012
| Year | No. isolates tested | No. (%) positive isolates |
CTX-M type (no. isolates/total no. isolates sequenced) | ||
|---|---|---|---|---|---|
| blaSHV | blaTEM | blaCTX-M | |||
| 2005 | 20 | 6 (30.0) | 4 (20.0) | 7 (35.0) | CTX-M-15 (5/5) |
| 2006 | 16 | 1 (6.3) | 3 (18.8) | 16 (56.3) | CTX-M-15 (6/6) |
| 2007 | 24 | 4 (16.7) | 9 (37.5) | 10 (50.0) | CTX-M-15 (4/6), CTX-M-1 (1/6), CTX-M-3 (1/6) |
| 2008 | 20 | 5 (25.0) | 10 (50.0) | 6 (30.0) | CTX-M-15 (5/5) |
| 2009 | 22 | 0 (0) | 12 (54.5) | 13 (59.1) | CTX-M-15 (5/5) |
| 2010 | 20 | 1 (5.0) | 9 (45.0) | 13 (65.0) | CTX-M-15 (6/6) |
| 2011 | 21 | 3 (14.3) | 9 (42.9) | 11 (52.3) | CTX-M-15 (8/8) |
| 2012 | 20 | 2 (10.0) | 10 (50.0) | 13 (65.0) | CTX-M-15 (6/6) |
| Total | 163 | 22 (13.5) | 66 (40.5) | 89 (54.6) | |
*ESBL, extended spectrum β-lactamase
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