A 19-year-old Aboriginal woman presented with a three-week history of swollen neck glands, nausea, vomiting, chills and weight loss. On examination, she had bilateral, nontender, diffuse cervical lymphadenopathy. Oral examination revealed extensive dental caries and periodontal disease. The results of her laboratory workup are shown in Table 1. Both a lymph node aspiration and a bone marrow bio...