Speciation and antibiogram of Coagulase Negative Staphylococci (CoNS) in a Tertiary Care Hospital


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Article type :

Original Article

Author :

Rajeswari Jayakumar, Vijayalakshmi Arumugam, Meerah Srinivasagam

Volume :

5

Issue :

2

Abstract :

Introduction and Objectives: CoNS which were considered as contaminants with minimal significance, have emerged as important agents of human disease. The recognition of increasing antimicrobial resistance among CoNS isolates constitutes a potentially worrisome emerging characteristic. Hence, this study was done to speciate and determine the resistant pattern of CoNS. Materials and Methods: 122 clinically significant CoNS isolates were obtained from various clinical samples between August 2016 to July 2017. These samples were processed conventionally. Results: Of the 122 CoNS species isolated majority were from pus. Identification of CoNS showed S.epidermidis 70 (57.4%), as the most frequently isolated species. Antimicrobial susceptibility pattern of the isolates showed maximum resistance to Penicillin. Methicillin resistance was seen among 19 (15.6 %) isolates. But all the isolates showed 100% sensitivity to glycopeptides and Linezolid. Conclusion: Meticulous identification, speciation and resistant pattern of the isolate is of paramount importance in clinical management of patients.

Keyword :

Coagulase negative Staphylococci(CoNS), Contaminant, Anti microbial susceptibility pattern, Methicillin resistance