Review of virus diseases in the nervous system.

Viruses are important to the study of molecular and cellular biology as they provide simple systems that can be used to manipulate and investigate the functions of cells. The study and use of viruses have provided valuable information about aspects of cell For example, viruses have been useful in the study of genetics and helped our understanding of the basic mechanisms of molecular genetics, such as DNA replication, transcription, RNA processing, translation, protein transport, and immunology. This Review focused on the neurological complications of the human herpes viruses (HHVs), and discusses optimal virological tests to identify the etiological agent, along with state-of -the art treatment for these disorders.