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Herpes. 2004 Jun;11 Suppl 2:105A-111A.

Human herpesvirus type 6 and human herpesvirus type 7 infections of the central nervous system.

Author information

  • Department of Microbiology and Immunology, University of Rochester Medical Center, Rochester, New York 14642, USA. stephan_dewhurst@urmc.rochester.edu

Abstract

In developing guidelines for the improved management of herpesvirus infections of the central nervous system (CNS), the International Herpes Management Forum (IHMF) has considered human herpesvirus (HHV) type 6 and type 7 disease. Although HHV-6 is generally asymptomatic, it has been associated with exanthema subitum, febrile convulsions and encephalitis in infants and immunocompromised adults and may play a role in multiple sclerosis, Guillain-Barre syndrome and acute disseminated encephalomyelitis. As HHV-6 is present in the brain tissue of healthy individuals, its role as an aetiological agent in CNS disorders is unclear. While polymerase chain reaction (PCR) is a method useful for diagnosis of other viral CNS infections, it has no value for diagnosing HHV-6. HHV-7 has not been shown to cause a specific disease but is associated with febrile convulsions and has been implicated as a cause of encephalitis. Ganciclovir and foscarnet, either alone or in combination, may be used for the management of HHV-6-related neurological disease. Although ganciclovir is unlikely to be effective against HHV-7-related CNS disease, foscarnet may be useful but prospective trials are needed.

PMID:
15319097
[PubMed - indexed for MEDLINE]
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