Report of Resistant Varicella Zoster infection treated with Donor Lymphocyte Infusion in a Pediatric Oncology Patient

: We report an 8-year-old boy with disseminated, life-threatening, drug treatment-resistant varicella zoster infection occurring during standard treatment for neuroblastoma in whom viral clearance and cure was effected by donor Lymphocyte infusion from his HLA (Human leukocyte antigen)-identical twin sibling.