Pulsed-field gel electrophoresis profiles of SmaI digested DNA. NCTC, National Collection of Type Cultures 8325 control. Lane 1, vancomycin-intermediate Staphylococcus aureus (VISA) isolate from Japan, otherwise designated Mu50; lane 2, VISA isolate from Michigan (7); lane 3, VISA isolate from New Jersey (7); Lane 4, VISA isolate from New York (1); lane 5, VISA isolate from Illinois (3); lane 7, patient's oxacillin-resistant VISA; lane 8, patient's oxacillin-susceptible VISA; lane 9 patient's ox