====== Hepatitis B virus ====== Hepatitis B virus (HBV), is a partially double-stranded DNA virus, a species of the genus Orthohepadnavirus and a member of the Hepadnaviridae family of viruses. This virus causes the disease [[hepatitis B]]. ===== Hepatitis B virus reactivation during temozolomide administration ===== [[Hepatitis B virus reactivation during temozolomide administration]].