Prevalence of High and Low Level Mupirocin Resistance among Staphylococcal Isolates from Skin Infection in a Tertiary Care Hospital

ABSTRACT Background: Mupirocin has been used for the treatment of skin infections and for the eradication of the nasal carriage of Methicillin -resistant Staphylococcus aureus (MRSA). The increased use of this antibiotic has been accompanied by its resistance, resulting in treatment failures....

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Main Authors: Jayakumar S, Meerabai M, Shameem Banu A.S, Renu Mathew, Kalyani M, Binesh Lal Y
Format: Article
Language:English
Published: JCDR Research and Publications Private Limited 2013-02-01
Series:Journal of Clinical and Diagnostic Research
Subjects:
Online Access:https://jcdr.net/articles/PDF/2736/12-%204694_u.pdf
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author Jayakumar S
Meerabai M
Shameem Banu A.S
Renu Mathew
Kalyani M
Binesh Lal Y
author_facet Jayakumar S
Meerabai M
Shameem Banu A.S
Renu Mathew
Kalyani M
Binesh Lal Y
author_sort Jayakumar S
collection DOAJ
description ABSTRACT Background: Mupirocin has been used for the treatment of skin infections and for the eradication of the nasal carriage of Methicillin -resistant Staphylococcus aureus (MRSA). The increased use of this antibiotic has been accompanied by its resistance, resulting in treatment failures. Objective: This study was aimed at determining the prevalences of low and high level Mupirocin resistance among the clinical isolates of Staphylococcus species which were obtained from pyogenic infections. Material and Method: Clinical samples such as wound swabs, tissues and pus which were submitted to the microbiology laboratory during a period of six months were screened for the growth of Staphylococcus species, which were identified as Staphylococcus aureus and Coagulase negative Staphylococcus species by the routine microbiological procedures. All the isolates were tested for their Mupirocin susceptibilities by using 5 and 200 µg discs and their resistance was confirmed from their Minimum Inhibitory Concentrations (MICs). Result: Out of 400 samples, 150 samples grew Staphylococcus species, of which 113 were Staphylococcus aureus and 37 were Coagulase negative Staphylococcus (CoNS). Only 5(3.3%) mupirocin resistant Staphylococcus species: three high level and two low level strains were detected. The MICs for the two low level and three high level Mupirocin resistant strains were 256 mg/L and ≥512mg/L each respectively. Conclusion: We conclude that the screening for mupirocin resistance, in terms of high-level and low-level resistance among the Staphylococcus species from patients with skin and soft tissue infections is warranted and that it is important for the clinicians in selecting the appropriate, empirical, topical, antimicrobial therapy. It also provides useful information about the prevalence of these resistant pathogens.
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spelling doaj.art-b76c0a18f0044c43867ef625245723e22022-12-21T18:13:50ZengJCDR Research and Publications Private LimitedJournal of Clinical and Diagnostic Research2249-782X0973-709X2013-02-017223824210.7860/JCDR/2013/4694.2736Prevalence of High and Low Level Mupirocin Resistance among Staphylococcal Isolates from Skin Infection in a Tertiary Care HospitalJayakumar S0Meerabai M1Shameem Banu A.S2Renu Mathew3Kalyani M4 Binesh Lal Y5Department of Microbiology, Saveetha Medical College & Hospital, Saveetha University, Thandalam, Kancheepuram District-602 105, Tamilnadu, India.Department of Microbiology, Saveetha Medical College & Hospital, Saveetha University, Thandalam, Kancheepuram District-602 105, Tamilnadu, India.Department of Microbiology, Saveetha Medical College & Hospital, Saveetha University, Thandalam, Kancheepuram District-602 105, Tamilnadu, India.Department of Microbiology, Saveetha Medical College & Hospital, Saveetha University, Thandalam, Kancheepuram District-602 105, Tamilnadu, India.Department of Microbiology, Saveetha Medical College & Hospital, Saveetha University, Thandalam, Kancheepuram District-602 105, Tamilnadu, India.Department of Microbiology, Saveetha Medical College & Hospital, Saveetha University, Thandalam, Kancheepuram District-602 105, Tamilnadu, India.ABSTRACT Background: Mupirocin has been used for the treatment of skin infections and for the eradication of the nasal carriage of Methicillin -resistant Staphylococcus aureus (MRSA). The increased use of this antibiotic has been accompanied by its resistance, resulting in treatment failures. Objective: This study was aimed at determining the prevalences of low and high level Mupirocin resistance among the clinical isolates of Staphylococcus species which were obtained from pyogenic infections. Material and Method: Clinical samples such as wound swabs, tissues and pus which were submitted to the microbiology laboratory during a period of six months were screened for the growth of Staphylococcus species, which were identified as Staphylococcus aureus and Coagulase negative Staphylococcus species by the routine microbiological procedures. All the isolates were tested for their Mupirocin susceptibilities by using 5 and 200 µg discs and their resistance was confirmed from their Minimum Inhibitory Concentrations (MICs). Result: Out of 400 samples, 150 samples grew Staphylococcus species, of which 113 were Staphylococcus aureus and 37 were Coagulase negative Staphylococcus (CoNS). Only 5(3.3%) mupirocin resistant Staphylococcus species: three high level and two low level strains were detected. The MICs for the two low level and three high level Mupirocin resistant strains were 256 mg/L and ≥512mg/L each respectively. Conclusion: We conclude that the screening for mupirocin resistance, in terms of high-level and low-level resistance among the Staphylococcus species from patients with skin and soft tissue infections is warranted and that it is important for the clinicians in selecting the appropriate, empirical, topical, antimicrobial therapy. It also provides useful information about the prevalence of these resistant pathogens.https://jcdr.net/articles/PDF/2736/12-%204694_u.pdfmethicillin-resistant staphylococcus aureus (mrsa)coagulase negative staphylococcus (cons)high and low level mupirocin resistance
spellingShingle Jayakumar S
Meerabai M
Shameem Banu A.S
Renu Mathew
Kalyani M
Binesh Lal Y
Prevalence of High and Low Level Mupirocin Resistance among Staphylococcal Isolates from Skin Infection in a Tertiary Care Hospital
Journal of Clinical and Diagnostic Research
methicillin-resistant staphylococcus aureus (mrsa)
coagulase negative staphylococcus (cons)
high and low level mupirocin resistance
title Prevalence of High and Low Level Mupirocin Resistance among Staphylococcal Isolates from Skin Infection in a Tertiary Care Hospital
title_full Prevalence of High and Low Level Mupirocin Resistance among Staphylococcal Isolates from Skin Infection in a Tertiary Care Hospital
title_fullStr Prevalence of High and Low Level Mupirocin Resistance among Staphylococcal Isolates from Skin Infection in a Tertiary Care Hospital
title_full_unstemmed Prevalence of High and Low Level Mupirocin Resistance among Staphylococcal Isolates from Skin Infection in a Tertiary Care Hospital
title_short Prevalence of High and Low Level Mupirocin Resistance among Staphylococcal Isolates from Skin Infection in a Tertiary Care Hospital
title_sort prevalence of high and low level mupirocin resistance among staphylococcal isolates from skin infection in a tertiary care hospital
topic methicillin-resistant staphylococcus aureus (mrsa)
coagulase negative staphylococcus (cons)
high and low level mupirocin resistance
url https://jcdr.net/articles/PDF/2736/12-%204694_u.pdf
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