Classification and Detection of ?-Lactamases Produced by Providencia spp
- VernacularTitle:普罗威登斯菌属?-内酰胺酶的分类检测
- Author:
Yanqing CHEN
;
Jian JIA
;
Zhaowei KUANG
- Publication Type:Journal Article
- Keywords:
Providencia spp;
?-Lactamases;
Classification
- From:
Chinese Journal of Nosocomiology
2006;0(12):-
- CountryChina
- Language:Chinese
-
Abstract:
OBJECTIVE To study the classification the ?-lactamases produced by Providencia spp.METHODS To detect the ?-lactamases produced by 19 strains of Providencia spp with nitrocefin test,a multi-disk test(synergy test,antagonized test for the inducible AmpC ?-lactamases(IABLs),AmpC ?-lactamases(ABLs) phenotype test and extended-spectrum ?-lactamases(ESBLs) screening test,carbapenem-hydrolyzing ?-lactamases(CHBLs).RESULTS The nitrocefin tests of all of 19 strains were positive,producing the ?-lactamases(100.0%);eight strains produced broad-spectrum ?-lactamases(BSBLs,42.1%) and ESBLs(42.1%),respectively,one strain produced overexpression of AmpC,3 strains produced CHBLs.CONCLUSIONS The rate of ?-lactamases produced by the 19 strains of Providencia spp is very high,there are three kinds of ?-lactamases,mainly BSBLs and ESBLs.
