Characterisation of non-multiresistant methicillin-resistant Staphylococcus aureus (including EMRSA-15) in Kuwait Hospitals

This study characterised non-multiresistant methicillin-resistant Staphylococcus aureus (nmMRSA) isolates from Kuwait hospitals to ascertain whether they were community-acquired MRSA (CA-MRSA). Forty-two nmMRSA isolates obtained between July 2001 and October 2003 were analysed by staphylococcal cass...

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Veröffentlicht in:Clinical microbiology and infection 2006-03, Vol.12 (3), p.262-269
Hauptverfasser: Udo, E.E., Al-Sweih, N., Noronha, B.
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description This study characterised non-multiresistant methicillin-resistant Staphylococcus aureus (nmMRSA) isolates from Kuwait hospitals to ascertain whether they were community-acquired MRSA (CA-MRSA). Forty-two nmMRSA isolates obtained between July 2001 and October 2003 were analysed by staphylococcal cassette chromosome mec (SCCmec) typing, bacteriophage typing, production of Panton-Valentine leukocidin (PVL), urease and staphylococcal enterotoxins A, B, C and D, TSST-1, and by pulsed-field gel electrophoresis (PFGE). Forty-one isolates were SCCmec type IV, and one isolate was SCCmec type III. The isolates belonged to six PFGE patterns, with two types, A and D, distributed in six and four hospitals, respectively. Most (n = 26; 61.9%) isolates produced urease. These isolates were mainly from wound and skin infections, showed low-level methicillin resistance (MIC 8–48 mg/L), and nine carried genes for PVL. These characteristics, together with their carriage of the type-IV SCCmec, identified the isolates as CA-MRSA. Ten of the 16 urease-negative isolates produced staphylococal enterotoxin C; 12 reacted weakly with phage 75, and were resistant to clindamycin and/or erythromycin, which are characteristics of EMRSA-15. Thus, this study identified the co-existence of two types of nmMRSA, i.e., CA-MRSA and EMRSA-15, in Kuwait hospitals.
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Forty-two nmMRSA isolates obtained between July 2001 and October 2003 were analysed by staphylococcal cassette chromosome mec (SCCmec) typing, bacteriophage typing, production of Panton-Valentine leukocidin (PVL), urease and staphylococcal enterotoxins A, B, C and D, TSST-1, and by pulsed-field gel electrophoresis (PFGE). Forty-one isolates were SCCmec type IV, and one isolate was SCCmec type III. The isolates belonged to six PFGE patterns, with two types, A and D, distributed in six and four hospitals, respectively. Most (n = 26; 61.9%) isolates produced urease. These isolates were mainly from wound and skin infections, showed low-level methicillin resistance (MIC 8–48 mg/L), and nine carried genes for PVL. These characteristics, together with their carriage of the type-IV SCCmec, identified the isolates as CA-MRSA. Ten of the 16 urease-negative isolates produced staphylococal enterotoxin C; 12 reacted weakly with phage 75, and were resistant to clindamycin and/or erythromycin, which are characteristics of EMRSA-15. Thus, this study identified the co-existence of two types of nmMRSA, i.e., CA-MRSA and EMRSA-15, in Kuwait hospitals.</description><identifier>ISSN: 1198-743X</identifier><identifier>EISSN: 1469-0691</identifier><identifier>DOI: 10.1111/j.1469-0691.2005.01350.x</identifier><identifier>PMID: 16451414</identifier><language>eng</language><publisher>Oxford, UK: Elsevier Ltd</publisher><subject>Anti-Bacterial Agents - pharmacology ; Antibacterial agents ; Antibiotic resistance ; Antibiotics. Antiinfectious agents. 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Ten of the 16 urease-negative isolates produced staphylococal enterotoxin C; 12 reacted weakly with phage 75, and were resistant to clindamycin and/or erythromycin, which are characteristics of EMRSA-15. Thus, this study identified the co-existence of two types of nmMRSA, i.e., CA-MRSA and EMRSA-15, in Kuwait hospitals.</description><subject>Anti-Bacterial Agents - pharmacology</subject><subject>Antibacterial agents</subject><subject>Antibiotic resistance</subject><subject>Antibiotics. Antiinfectious agents. 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Forty-two nmMRSA isolates obtained between July 2001 and October 2003 were analysed by staphylococcal cassette chromosome mec (SCCmec) typing, bacteriophage typing, production of Panton-Valentine leukocidin (PVL), urease and staphylococcal enterotoxins A, B, C and D, TSST-1, and by pulsed-field gel electrophoresis (PFGE). Forty-one isolates were SCCmec type IV, and one isolate was SCCmec type III. The isolates belonged to six PFGE patterns, with two types, A and D, distributed in six and four hospitals, respectively. Most (n = 26; 61.9%) isolates produced urease. These isolates were mainly from wound and skin infections, showed low-level methicillin resistance (MIC 8–48 mg/L), and nine carried genes for PVL. These characteristics, together with their carriage of the type-IV SCCmec, identified the isolates as CA-MRSA. Ten of the 16 urease-negative isolates produced staphylococal enterotoxin C; 12 reacted weakly with phage 75, and were resistant to clindamycin and/or erythromycin, which are characteristics of EMRSA-15. Thus, this study identified the co-existence of two types of nmMRSA, i.e., CA-MRSA and EMRSA-15, in Kuwait hospitals.</abstract><cop>Oxford, UK</cop><pub>Elsevier Ltd</pub><pmid>16451414</pmid><doi>10.1111/j.1469-0691.2005.01350.x</doi><tpages>8</tpages><oa>free_for_read</oa></addata></record>
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subjects Anti-Bacterial Agents - pharmacology
Antibacterial agents
Antibiotic resistance
Antibiotics. Antiinfectious agents. Antiparasitic agents
Bacterial diseases
Bacterial Proteins - genetics
Bacterial Toxins - genetics
Bacterial Typing Techniques
beta-Lactams - pharmacology
Biological and medical sciences
community-acquired MRSA
Cross Infection
DNA, Bacterial - analysis
Electrophoresis, Gel, Pulsed-Field
EMRSA-15
Enterotoxins - metabolism
Exotoxins - genetics
Genes, Bacterial
Hospitals
Human bacterial diseases
Humans
Infectious diseases
Kuwait
Leukocidins
Medical sciences
Methicillin - pharmacology
Methicillin Resistance
Microbial Sensitivity Tests
MRSA
Pharmacology. Drug treatments
Recombinases - genetics
SCCmec
Staphylococcal Infections - microbiology
Staphylococcal infections, streptococcal infections, pneumococcal infections
Staphylococcus aureus
Staphylococcus aureus - classification
Staphylococcus aureus - drug effects
Staphylococcus aureus - genetics
Staphylococcus aureus - metabolism
Urease - metabolism
title Characterisation of non-multiresistant methicillin-resistant Staphylococcus aureus (including EMRSA-15) in Kuwait Hospitals
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