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Publications > Détail
B ISSARTEL. A TRISTAN. S LECHEVALLIER. F BRUYERE. G LINA. B GARIN. F LACASSIN.M BES. F VANDENESH. J ETIENNE (2005)
    FREQUENT CARRIAGE OF PANTON-VALENTINE LEUCOCIDIN GENES BY STAPHYLOCOCCUS AUREUS ISOLMATES FROM SURGICALLY DRAINED ABSCESSES

    Résumé :
      Between 1 February and 15 April 2002, 95 patients were admitted to Gaston Bourret Territorial Hospital ( New Caledonia France) for drainage of community-acquired soft tissues abcesses. Staphylococcus aureus was detected in 68 cases ( 72%). Two -third of the patients with S.Aureus infection had furuncles, which were located on the limbs in 82% of cases. The median interval between symptom onset and hospital admission was 5,7 days. Three-quarters of the patients were Melanesians living in tribes. Fifty-four S.aureus isolates were screened for towin genes. Panton-Valentine leucocidin (PVL) genes were detected in 48 isolates (89%) the exfoliative toxin A gene was detected in 1 isolate, and no toxin genes were detected in 4 isolates. S.aureus nasal carriage was detected in 39,7% of patients with S.aureus infections. Two infecting S.aureus strains and two nasal carriage strains were resistant to methicillin. Comparative plused-field gel electrophoresis , performed in 16 cases, showed that five of six patients with PVL-positive nasal carriage strains were infected by same strains. In contrast, 8 of 10 patients with PVL-negative nasal carriage strains sere infected by PVL-positive strains.PVL genes thus appear to be a major virulence factor in both primary and secondary S.aureux skin infection.
    Mots-Clés :
      Panton-Valentine Leucocidine Gene (PVL)
    Source :
      Journal of Clinical Microbiology July 2005 ;3203-3207
 
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