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Published on: December 2, 2012
Herpesvirus-Associated Encephalitis: an Update
Elizabeth Matthews1, J David Beckham1,2, Amanda L Piquet1
1Neuro-Infectious Diseases Group, Department of Neurology and Division of Infectious Diseases, University of Colorado School of Medicine, 12700 E 19th Ave, Mailstop B-182, Aurora, CO 80045 USA.
Purpose Of Review:
Herpesviruses are a leading cause of encephalitis worldwide. The article reviews the eight human herpesviruses with a focus on recent advances as they pertain to encephalitis.
Recent Findings:
Notable recent updates include the development of multiplex polymerase chain reaction (PCR)-based panels, which have improved access to PCR tests, especially in rural and resource-limited areas. Despite unchanged treatment recommendations, research is ongoing into novel therapies. There have been recent advances in vaccines, particularly for varicella zoster virus (VZV) which may impact neurologic complications. Finally, the recent discovery of an association between herpes encephalitis and post-infectious autoimmune encephalitis has had a critical impact on the fields of infectious and autoimmune neurology, though there remains much to learn.
Summary:
Most herpesviruses are neurotropic and must be considered on the differential diagnosis for infectious encephalitis. This article describes recent advances in the diagnosis, treatment, complications, and management of these infections.
