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2009•Zhongguo yiyuan ganranxue zazhiRequires access

Nosocomial Infections Caused by Coagulase Negative Staphylococcus and Drug-resistance

Li Shi

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Abstract

OBJECTIVE To study drug-resistance status of nosocomial infections caused by coagulase negative staphylococcus(CNS)to offer scientific basis for reasonable usage of antibiotics.METHODS CNS were all identified by VITEK32 system.The drug suspectivity was tested by K-B method.The results were judged according to NCCLS/CLSI2004.RESULTS Among 258 strains of CNS,111 strains of Staphylococcus haemolyticus ranked the top,accounting for 43.0% and followed by 98 strains of S.epidermidis(38.0%).The isolating rate of meticillin-resistant coagulase-negative staphylococcus(MRCNS)was 51.9%(134/258).The drug-resistance rate of MRCNS was higher obviously than that of methicillin-susceptible coagulase-negative staphylococcus(MSCNS).CONCLUSIONS CNS has been one of the important pathogens of nosocomial infections.MRCNS with higher isolating rate showed multi-drug resistance.The glycopeptide antibiotics are the first choice to cure MRCNS infections.

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OBJECTIVE To study drug-resistance status of nosocomial infections caused by coagulase negative staphylococcus(CNS)to offer scientific basis for reasonable usage of antibiotics.METHODS CNS were all identified by VITEK32 system.The drug suspectivity was tested by K-B method.The results were judged according to NCCLS/CLSI2004.RESULTS Among 258 strains of CNS,111 strains of Staphylococcus haemolyticus ranked the top,accounting for 43.0% and followed by 98 strains of S.epidermidis(38.0%).The isolating rate of meticillin-resistant coagulase-negative staphylococcus(MRCNS)was 51.9%(134/258).The drug-resistance rate of MRCNS was higher obviously than that of methicillin-susceptible coagulase-negative staphylococcus(MSCNS).CONCLUSIONS CNS has been one of the important pathogens of nosocomial infections.MRCNS with higher isolating rate showed multi-drug resistance.The glycopeptide antibiotics are the first choice to cure MRCNS infections.

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Available abstract

OBJECTIVE To study drug-resistance status of nosocomial infections caused by coagulase negative staphylococcus(CNS)to offer scientific basis for reasonable usage of antibiotics.METHODS CNS were all identified by VITEK32 system.The drug suspectivity was tested by K-B method.The results were judged according to NCCLS/CLSI2004.RESULTS Among 258 strains of CNS,111 strains of Staphylococcus haemolyticus ranked the top,accounting for 43.0% and followed by 98 strains of S.epidermidis(38.0%).The isolating rate of meticillin-resistant coagulase-negative staphylococcus(MRCNS)was 51.9%(134/258).The drug-resistance rate of MRCNS was higher obviously than that of methicillin-susceptible coagulase-negative staphylococcus(MSCNS).CONCLUSIONS CNS has been one of the important pathogens of nosocomial infections.MRCNS with higher isolating rate showed multi-drug resistance.The glycopeptide antibiotics are the first choice to cure MRCNS infections.

Key concepts: Staphylococcus haemolyticus, Coagulase, Staphylococcus, Microbiology, Drug resistance, Staphylococcus epidermidis, Antibiotics, Glycopeptide

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