A SURVEY OF BETA-LACTAMASES FROM 618 ISOLATES OF KLEBSIELLA SPP

被引:18
作者
REIG, R
ROY, C
HERMIDA, M
TERUEL, D
COIRA, A
机构
[1] UNIV AUTONOMA MADRID,INST MUNICIPAL INVEST MED,PASEO MARITIMO 25-29,E-08003 BARCELONA,SPAIN
[2] UNIV AUTONOMA BARCELONA,INST MICROBIOL MED,BARCELONA,SPAIN
关键词
D O I
10.1093/jac/31.1.29
中图分类号
R51 [传染病];
学科分类号
100401 ;
摘要
β-Lactamases from 618 isolates of Klebsiella spp. (487 Klebsiella pneumoniae and 131 Klebsiella oxytoca) were identified by analytical isoelectric focusing. The strains were consecutive isolates from 618 different patients in five hospital centres between 1980 and 1984. Most of the chromosomal β-lactamases from the K. pneumoniae isolates had a p1 of 7·1, and most of the K. oxytoca isolates had chromosomal β-lactamases of pis 7·8, 5·3 and 5·5. Plasmid-mediated β-lactamases were produced by 91·8% of K. pneumoniae isolates and 9·9% of K. oxytoca isolates. The β-lactamase types identified most frequently were SHV-1 in the former species, and TEM-l in the latter species. Of the K. pneumoniae isolates, 101 produced both of these plasmid-mediated β-lactamases, while one strain produced an extended-spectrum SHV-like β-lacta mase. Of the 131 K. oxytoca isolates, 20 were hypcr-producers of chromosomal β-lactamase. The susceptibility of this genus to β-lactam antibiotics is controlled almost exclusively by β-lactamases, the production of which may differ from one strain to another; thus the empirical therapeutic use of β-lactam antibiotics is not recommended for this genus. © 1993 The British Society for Antimicrobial Chemotherapy.
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页码:29 / 35
页数:7
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