ArticleJundishapur journal of microbiology2015
Emergence of SCCmec Type I Obtained From Clinical Samples in Shiraz Teaching Hospitals, South-West of Iran.
Article in Jundishapur journal of microbiology, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers.
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6 citing papers in PubMed.
- Genetic Characterization of Antibiotic-ResistantAntibiotics (Basel, Switzerland) · 2024Article
- Identification of two major direct repeat unit clusters, 8i and 11ce, among methicillin resistant Staphylococcus aureus strains: the emergence of novel dru types and repeats.Molecular biology reports · 2022Article
- Determination of Virulence Factors and Resistance Profile of Methicillin-ResistantBioMed research international · 2022Article
- Distribution ofJournal of clinical and diagnostic research : JCDR · 2017Article
- Antibiotic Resistance Patterns and Virulence Determinants of Different SCCmec and Pulsotypes ofThe open microbiology journal · 2017Review
- Frequency of Aminoglycoside-Resistance Genes in Methicillin-ResistantJundishapur journal of microbiology · 2016Article
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4 authors.
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Abstract
backgroundMethicillin-resistant Staphylococcus aureus (MRSA) continues to be a major cause of nosocomial infections. Methicillin resistance in S. aureus is caused by the acquisition of the mecA gene, located on a mobile genetic element called the staphylococcal cassette chromosome (SCC).
objectivesThe aim of this study was to evaluate the presence of the predominant SCCmec type present among clinical isolates. MATERIALS AND
methodsThis cross-sectional study was performed on a total of 146 MRSA isolates obtained from clinical specimens between 2012 and 2013 from two major hospitals in Shiraz, Southwest of Iran. Antibiotic susceptibility profiles were determined by the disc diffusion method according to the guidelines of The Clinical and Laboratory Standards Institute. Bacterial DNA was extracted using the small-scale phenol-chloroform extraction method and was employed as polymerase chain reaction (PCR) templates for the assigned current SCCmec types.
resultsThe assigned SCCmec types by PCR revealed the SCCmec type I as the predominant type with 86 (58.9%) samples, followed by the SCCmec type II with 29 (19.9%), type III with 16 (11.0%), and type IV with 12 (8.2%) samples, respectively. The SCCmec type I MRSA isolates were significantly recovered from blood (80%) and sputum (67.2%). The results of antibacterial susceptibility tests for the MRSA isolates showed that all of those carrying the SCCmec type I and II had significantly greater resistance rates to Gentamicin and Rifampin than the isolates containing the SCCmec type III. Also, a significant difference was detected for susceptibility to Co-trimoxazole between the SCCmec type I and II MRSA isolates and the SCCmec type III, which was more resistant.
conclusionsThe frequency of the isolates containing type I in the current study can indicate an emergence of this SCCmec type in the studied medical centers.
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