background: kaposi’s sarcoma is a vascular malignancy, which frequently occurs among immunocompromised individuals such as transplant recipients and patients with acquired immunodeficiency syndrome. human herpesvirus 8 (hhv-8) is considered the etiological agent of all forms of kaposi’s sarcoma. though some seroepidemiological studies conducted on the prevalence of hhv-8 in iran, there are insu...