EVIDENCE: {'Resistant prediction': 'I491F', 'Observed_samples': {'Present_SOLO_SR': 173, 'Present_SOLO_R': 96, 'Present_SOLO_S': 77}, 'Additional grading criteria applied': 'Borderline', 'FINAL CONFIDENCE GRADING': '1) Assoc w R', 'INITIAL CONFIDENCE GRADING': '1) Assoc w R', 'WHO HGVS': 'rpoB_p.Ile491Phe'}