Community-acquired methicillin-resistant Staphylococcus aureus carrying Panton-Valentine leukocidin genes: worldwide emergence. 2003

Francois Vandenesch, and Timothy Naimi, and Mark C Enright, and Gerard Lina, and Graeme R Nimmo, and Helen Heffernan, and Nadia Liassine, and Michèle Bes, and Timothy Greenland, and Marie-Elisabeth Reverdy, and Jerome Etienne
INSERM E0230, Lyon, France.

Infections caused by community-acquired (CA)-methicillin--resistant Staphylococcus aureus (MRSA) have been reported worldwide. We assessed whether any common genetic markers existed among 117 CA-MRSA isolates from the United States, France, Switzerland, Australia, New Zealand, and Western Samoa by performing polymerase chain reaction for 24 virulence factors and the methicillin-resistance determinant. The genetic background of the strain was analyzed by pulsed-field gel electrophoresis (PFGE) and multi-locus sequence typing (MLST). The CA-MRSA strains shared a type IV SCCmec cassette and the Panton-Valentine leukocidin locus, whereas the distribution of the other toxin genes was quite specific to the strains from each continent. PFGE and MLST analysis indicated distinct genetic backgrounds associated with each geographic origin, although predominantly restricted to the agr3 background. Within each continent, the genetic background of CA-MRSA strains did not correspond to that of the hospital-acquired MRSA.

UI MeSH Term Description Entries
D007956 Leukocidins Pore forming proteins originally discovered for toxic activity to LEUKOCYTES. They are EXOTOXINS produced by some pathogenic STAPHYLOCOCCUS and STREPTOCOCCUS that destroy leukocytes by lysis of the cytoplasmic granules and are partially responsible for the pathogenicity of the organisms. Leucocidin,Leukocidin,Leukocidin Proteins,Proteins, Leukocidin
D008826 Microbial Sensitivity Tests Any tests that demonstrate the relative efficacy of different chemotherapeutic agents against specific microorganisms (i.e., bacteria, fungi, viruses). Bacterial Sensitivity Tests,Drug Sensitivity Assay, Microbial,Minimum Inhibitory Concentration,Antibacterial Susceptibility Breakpoint Determination,Antibiogram,Antimicrobial Susceptibility Breakpoint Determination,Bacterial Sensitivity Test,Breakpoint Determination, Antibacterial Susceptibility,Breakpoint Determination, Antimicrobial Susceptibility,Fungal Drug Sensitivity Tests,Fungus Drug Sensitivity Tests,Sensitivity Test, Bacterial,Sensitivity Tests, Bacterial,Test, Bacterial Sensitivity,Tests, Bacterial Sensitivity,Viral Drug Sensitivity Tests,Virus Drug Sensitivity Tests,Antibiograms,Concentration, Minimum Inhibitory,Concentrations, Minimum Inhibitory,Inhibitory Concentration, Minimum,Inhibitory Concentrations, Minimum,Microbial Sensitivity Test,Minimum Inhibitory Concentrations,Sensitivity Test, Microbial,Sensitivity Tests, Microbial,Test, Microbial Sensitivity,Tests, Microbial Sensitivity
D005098 Exotoxins Toxins produced, especially by bacterial or fungal cells, and released into the culture medium or environment. Exotoxin
D006801 Humans Members of the species Homo sapiens. Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D001427 Bacterial Toxins Toxic substances formed in or elaborated by bacteria; they are usually proteins with high molecular weight and antigenicity; some are used as antibiotics and some to skin test for the presence of or susceptibility to certain diseases. Bacterial Toxin,Toxins, Bacterial,Toxin, Bacterial
D013211 Staphylococcus aureus Potentially pathogenic bacteria found in nasal membranes, skin, hair follicles, and perineum of warm-blooded animals. They may cause a wide range of infections and intoxications.
D016106 Methicillin Resistance Non-susceptibility of a microbe to the action of METHICILLIN, a semi-synthetic penicillin derivative. Methicillin-Resistant,Methicillin Resistant,Resistance, Methicillin
D016521 Electrophoresis, Gel, Pulsed-Field Gel electrophoresis in which the direction of the electric field is changed periodically. This technique is similar to other electrophoretic methods normally used to separate double-stranded DNA molecules ranging in size up to tens of thousands of base-pairs. However, by alternating the electric field direction one is able to separate DNA molecules up to several million base-pairs in length. Electrophoresis, Gel, Pulsed-Field Gradient,Gel Electrophoresis, Pulsed-Field,Contour-Clamped Homogeneous-Field Gel Electrophoresis,Electrophoresis, Gel, Pulsed Field,Electrophoresis, Pulsed Field Gel,Field Inversion Gel Electrophoresis,Orthogonal Field Alternation Gel Electrophoresis,Orthogonal-Field Alternation-Gel Electrophoresis,Pulsed Field Gradient Gel Electrophoresis,Pulsed-Field Gel Electrophoresis,Pulsed-Field Gradient Gel Electrophoresis,Alternation-Gel Electrophoresis, Orthogonal-Field,Contour Clamped Homogeneous Field Gel Electrophoresis,Electrophoresis, Orthogonal-Field Alternation-Gel,Electrophoresis, Pulsed-Field Gel,Gel Electrophoresis, Pulsed Field,Pulsed Field Gel Electrophoresis
D017714 Community-Acquired Infections Any infection acquired in the community, that is, contrasted with those acquired in a health care facility (CROSS INFECTION). An infection would be classified as community-acquired if the patient had not recently been in a health care facility or been in contact with someone who had been recently in a health care facility. Community Acquired Infection,Community-Acquired Infection,Infections, Community-Acquired,Acquired Infection, Community,Acquired Infections, Community,Community Acquired Infections,Infection, Community Acquired,Infection, Community-Acquired,Infections, Community Acquired
D021821 Communicable Diseases, Emerging Infectious diseases that are novel in their outbreak ranges (geographic and host) or transmission mode. Infectious Diseases, Emerging,Communicable Diseases, Re-Emerging,Communicable Diseases, Reemerging,Infectious Diseases, Re-Emerging,Infectious Diseases, Reemerging,Communicable Disease, Emerging,Communicable Disease, Re-Emerging,Communicable Disease, Reemerging,Communicable Diseases, Re Emerging,Disease, Emerging Communicable,Disease, Emerging Infectious,Disease, Re-Emerging Communicable,Disease, Re-Emerging Infectious,Disease, Reemerging Communicable,Disease, Reemerging Infectious,Diseases, Emerging Communicable,Diseases, Emerging Infectious,Diseases, Re-Emerging Communicable,Diseases, Re-Emerging Infectious,Diseases, Reemerging Communicable,Diseases, Reemerging Infectious,Emerging Communicable Disease,Emerging Communicable Diseases,Emerging Infectious Disease,Emerging Infectious Diseases,Infectious Disease, Emerging,Infectious Disease, Re-Emerging,Infectious Disease, Reemerging,Infectious Diseases, Re Emerging,Re-Emerging Communicable Disease,Re-Emerging Communicable Diseases,Re-Emerging Infectious Disease,Re-Emerging Infectious Diseases,Reemerging Communicable Disease,Reemerging Communicable Diseases,Reemerging Infectious Disease,Reemerging Infectious Diseases

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