There are many different Herpes Viruses (all DNA viruses) that are implicated in many different diseases:
Many Herpes viruses including Herpes Simplex may also be associated with reactivation of the disease and relapses. This presumably occurs when the virus starts actively replicating and triggers and immune response that triggers inflammation in the brain and spinal cord.
Hope this helps.
Revere (Rip) Kinkel MD
Professor of Clinical Neurosciences
Director of the Multiple Sclerosis Program
Clinical Neurosciences Director
University of California San Diego
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