In Vivo Development of Ertapenem Resistance in a Patient with Pneumonia Caused by Klebsiella pneumoniae with an Extended-Spectrum -Lactamase
Author(s) -
Eugenne Elliott,
Adrian Brink,
Johan van Greune,
Z. Els,
Neil Woodford,
Jane F. Turton,
Morgyn S. Warner,
D. M. Livermore
Publication year - 2006
Publication title -
clinical infectious diseases
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 3.44
H-Index - 336
eISSN - 1537-6591
pISSN - 1058-4838
DOI - 10.1086/503264
Subject(s) - ertapenem , klebsiella pneumoniae , microbiology and biotechnology , klebsiella pneumonia , in vivo , medicine , pneumonia , porin , beta lactamase , enterobacteriaceae , antibiotics , antibiotic resistance , imipenem , bacteria , biology , pseudomonas aeruginosa , escherichia coli , bacterial outer membrane , gene , biochemistry , genetics
Four sequential extended-spectrum beta -lactamase-producing isolates of Klebsiella pneumoniae were obtained from a patient after treatment with ertapenem and cultured. The first and fourth isolates were susceptible to ertapenem, whereas the second and third were resistant. All 4 isolates belonged to the same strain and produced a group 1 CTX-M enzyme; additionally, the resistant isolates had lost a porin.
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