The Role of Epstein-Barr Virus Subtypes in Human Immunodeficiency Virus-Associated Lymphoma

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Abstract
High grade B cell non-Hodgkin's lymphoma (NHL) is an increasingly important problem in individuals infected with the human immunodeficiency virus (HIV). Fifty percent of these tumours harbour the Epstein-Barr virus (EBV) and there is an equal frequency of EBV A and B-subtypes in the tumours. This contrasts with the recent report that only A-type EBV is associated with Hodgkin's disease. Such studies are challenging the traditional models of EBV-associated lymphomagenesis and showing the way for further studies in this field. This article reviews the studies of EBV subtypes in HIV-associated NHL and uses this new knowledge to discuss the role of EBV in lymphomagenesis.