Profile of a vancomycin-resistant subpopulation of methicillin-resistant staphylococci. MRS 2, 13, 108, 60, 31, and 109 were S. haemolyticus, and MRS 73, 97, and 102 were S. aureus. These strains were picked from the colony on the BHIA plate containing 8 mg of vancomycin/liter. ATCC 29213 (ATCC) was used as a control.