TABLE 2.

Test results obtained with 15 isolates that were bile solubility positive but negative with the AccuProbe test

IsolateResult by:
Optochin susceptibilityOmni serumMorphologya
172ResistantNegativeOther
235SusceptibleNegativeButton
356SusceptibleNegativeOther
397SusceptibleNegativeOther
419SusceptiblePositiveOther
447SusceptibleNegativeOther
725SusceptiblePositiveOther
751SusceptibleNegativeOther
1198SusceptibleNegativeOther
1220SusceptibleNegativeButton
1255SusceptiblePositiveOther
1455SusceptiblePositiveOther
1553SusceptibleNegativeOther
1561ResistantNegativeOther
1596SusceptiblePositiveOther
  • a Button morphology refers to central depression of colonies; “other” denotes alpha-hemolytic colonies without button or mucoid morphology.