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International Journal of Current Microbiology and Applied Sciences (IJCMAS)
IJCMAS is now DOI (CrossRef) registered Research Journal. The DOIs are assigned to all published IJCMAS Articles.
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National Academy of Agricultural Sciences (NAAS)
NAAS Score: *5.38 (2017)
[Effective from January 1, 2017]
For more details click here

ICV 2017: 100.00
Index Copernicus ICI Journals Master List 2017 - IJCMAS--ICV 2017: 100.00
For more details click here
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PRINT ISSN : 2319-7692
Online ISSN : 2319-7706
Issues : 12 per year
Publisher : Excellent Publishers
Email : editorijcmas@gmail.com / submit@ijcmas.com
Editor-in-chief: Dr.M.Prakash
Index Copernicus ICV 2017: 100.00
NAAS RATING 2018: 5.38

Int.J.Curr.Microbiol.App.Sci.2018.7(11): 989-999
DOI: https://doi.org/10.20546/ijcmas.2018.711.114


A Study on Correlation of Antimicrobial Resistance Pattern and Biofilm Formation among Coagulase Negative Staphylococcus Isolates
Radhika Katragadda* and Sowmya A. Venkateswaran
Department of Microbiology, Government Medical College, Omandurar Govt. Estate, Chennai, Tamilnadu, India
*Corresponding author
Abstract:

Coagulase negative Staphylococcus (CONS), once considered as a commensal has now evolved as a major infectious pathogen with biofilm forming ability. This study was conducted to identify the antibiotic resistance pattern of varied CONS species in association with its biofilm forming ability. CONS isolated from various clinical samples were speciated. Their antimicrobial resistant pattern and biofilm producing ability were studied and analyzed. 7.98% of our clinical isolates were CONS, with 21.52% of them being Methicillin resistant (MR-CONS) and 78.48% were Methicillin sensitive (MS-CONS). Of the MR-CONS, S. epidermidis comprises about 70.59%, followed by S. hemolyticus (15.69%). 23.63 % of CONS are biofilm producers, of which 60.71% are MR-CONS isolates and 39.29% were MS –CONS. 73.21% of biofilm producers were S. epidermidis. Biofilm producers were resistant to multiple antibiotics when compared to non-biofilm producers. All the CONS isolates were sensitive to vancomycin and Linezolid. With increase in incidence of MR-CONS and biofilm formation, routine identification with their antimicrobial resistance pattern should be documented and practiced to prevent the emergence of these common commensals as super bugs.


Keywords: Coagulase negative Staphylococcus, Methicillin resistance, Biofilm producers, Antimicrobial resistance
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How to cite this article:

Radhika Katragadda and Sowmya A. Venkateswaran. 2018. A Study on Correlation of Antimicrobial Resistance Pattern and Biofilm Formation among Coagulase Negative Staphylococcus Isolates.Int.J.Curr.Microbiol.App.Sci. 7(11): 989-999. doi: https://doi.org/10.20546/ijcmas.2018.711.114