Vancomycin population analysis profiles of initial patient isolates prior to vancomycin therapy (JKD6000, JKD6009, JKD6021, JKD6052, and JKD6004) and later blood culture isolates after persistent bacteremia despite vancomycin therapy (JKD6001, JKD6008, JKD6023, JKD6051, and JKD6005). Also included are the hVISA reference strain Mu3 (ATCC 700698) and VSSA strain ATCC 25923.