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. 2004 Nov;42(11):5378-80.
doi: 10.1128/JCM.42.11.5378-5380.2004.

Clonal spread of IMP-1-producing Pseudomonas aeruginosa in two hospitals in Singapore

Tse Hsien Koh  1 , Grace Chee Yeng Wang, Li-Hwei Sng
Affiliations

Clonal spread of IMP-1-producing Pseudomonas aeruginosa in two hospitals in Singapore

Tse Hsien Koh et al. J Clin Microbiol. 2004 Nov.

Abstract

Thirty-six isolates of carbapenem-resistant Pseudomonas aeruginosa were studied. Pulsed-field gel electrophoresis revealed the presence of two clones. One clone carried a bla(IMP-1) gene identical to that first described in Japan. The other clone carried a bla(IMP-1) variant containing four silent mutations. One isolate with a unique pulsed-field gel electrophoresis pattern contained bla(IMP-7).

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Figures

FIG. 1.
FIG. 1.
Representative PFGE patterns of carbapenem-resistant P. aeruginosa. Lanes: M, low-range PFGE marker (size are given in kilobases); 1, strain DU20080/00; 2, strain DU16517/00; 3, strain DU31106/00; 4, strain DU34565/00; 5, strain DU8622/00; 6, strain DU9519/00; 7, strain DM10075/00; 8, strain DU40799/00; 9, strain DU6061/00; 10, strain DU14610/00; 11, strain DM727/00. The PFGE patterns are indicated by the letters above the lane numbers.
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