Coagulase Negative Staphylococci: Phenotypic Characterization and Antimicrobial Susceptibility Pattern

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Staphylococci: Phenotypic Characterization and Antimicrobial Susceptibility Pattern</title> <meta name="description" content="Coagulase Negative Staphylococci: Phenotypic Characterization and Antimicrobial Susceptibility Pattern"> <meta name="keywords" content="CoNS, congo red agar, bloodstream infections, foreign body-related infections, tissue culture plate "> <meta name="viewport" content="width=device-width, initial-scale=1, minimum-scale=1, maximum-scale=1, user-scalable=no"> <meta charset="utf-8"> <link href="https://cdn.waset.org/favicon.ico" type="image/x-icon" rel="shortcut icon"> <link href="https://cdn.waset.org/static/plugins/bootstrap-4.2.1/css/bootstrap.min.css" rel="stylesheet"> <link href="https://cdn.waset.org/static/plugins/fontawesome/css/all.min.css" rel="stylesheet"> <link href="https://cdn.waset.org/static/css/site.css?v=150220211555" rel="stylesheet"> </head> <body> <header> <div class="container"> <nav class="navbar navbar-expand-lg navbar-light"> <a 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87402</div> </div> </div> </div> <div class="card publication-listing mt-3 mb-3"> <h5 class="card-header" style="font-size:.9rem">Coagulase Negative Staphylococci: Phenotypic Characterization and Antimicrobial Susceptibility Pattern</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Lok%20Bahadur%20Shrestha">Lok Bahadur Shrestha</a>, <a href="https://publications.waset.org/abstracts/search?q=Narayan%20Raj%20Bhattarai"> Narayan Raj Bhattarai</a>, <a href="https://publications.waset.org/abstracts/search?q=Basudha%20Khanal"> Basudha Khanal</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Introduction: Coagulase-negative staphylococci (CoNS) are the normal commensal of human skin and mucous membranes. The study was carried out to study the prevalence of CoNS among clinical isolates, to characterize them up to species level and to compare the three conventional methods for detection of biofilm formation. Objectives: to characterize the clinically significant coagulase-negative staphylococci up to species level, to compare the three phenotypic methods for the detection of biofilm formation and to study the antimicrobial susceptibility pattern of the isolates. Methods: CoNS isolates were obtained from various clinical samples during the period of 1 year. Characterization up to species level was done using biochemical test and study of biofilm formation was done by tube adherence, congo red agar, and tissue culture plate method. Results: Among 71 CoNS isolates, seven species were identified. S. epidermidis was the most common species followed by S. saprophyticus, S. haemolyticus. Antimicrobial susceptibility pattern of CoNS documented resistance of 90% to ampicillin. Resistance to cefoxitin and ceftriaxone was observed in 55% of the isolates. We detected biofilm formation in 71.8% of isolates. The sensitivity of tube adherence method was 82% while that of congo red agar method was 78%. Conclusion: Among 71 CoNS isolated, S. epidermidis was the most common isolates followed by S. saprophyticus and S. haemolyticus. Biofilm formation was detected in 71.8% of the isolates. All of the methods were effective at detecting biofilm-producing CoNS strains. Biofilm former strains are more resistant to antibiotics as compared to biofilm non-formers. <iframe src="https://publications.waset.org/abstracts/77219.pdf" style="width:100%; height:400px;" frameborder="0"></iframe> <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=CoNS" title="CoNS">CoNS</a>, <a href="https://publications.waset.org/abstracts/search?q=congo%20red%20agar" title=" congo red agar"> congo red agar</a>, <a href="https://publications.waset.org/abstracts/search?q=bloodstream%20infections" title=" bloodstream infections"> bloodstream infections</a>, <a href="https://publications.waset.org/abstracts/search?q=foreign%20body-related%20infections" title=" foreign body-related infections"> foreign body-related infections</a>, <a href="https://publications.waset.org/abstracts/search?q=tissue%20culture%20plate" title=" tissue culture plate "> tissue culture plate </a> </p> <a 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Coagulase Negative Staphylococci: Phenotypic Characterization and Antimicrobial Susceptibility Pattern