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Related Experiment Videos

Human herpesvirus 6

D K Braun1, G Dominguez, P E Pellett

  • 1Eli Lilly, Lilly Corporate Center, Indianapolis, Indiana 46285, USA.

Clinical Microbiology Reviews
|July 1, 1997
PubMed
Summary
This summary is machine-generated.

Human herpesvirus 6 variants A and B (HHV-6A and HHV-6B) are common viruses. While HHV-6B causes roseola, HHV-6A

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Area of Science:

  • Virology
  • Immunology
  • Neurology

Background:

  • Human herpesvirus 6 variants A and B (HHV-6A and HHV-6B) are distinct members of the Roseolovirus genus.
  • Over 95% of individuals over two years old are seropositive for HHV-6, with current methods unable to differentiate between variants.
  • HHV-6 establishes a commensal presence in the brain, with potential neurological implications.

Purpose of the Study:

  • To differentiate the roles and associations of HHV-6A and HHV-6B in human diseases.
  • To investigate the potential link between HHV-6A and human malignancies.
  • To explore the neurological manifestations associated with HHV-6, including its role in multiple sclerosis.

Main Methods:

  • Review of existing serologic and etiological data.

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  • Analysis of clinical associations and disease outcomes.
  • Investigation of HHV-6 presence and distribution in the central nervous system.

    • Main Results:

    • HHV-6B is the established cause of exanthem subitum (roseola infantum) and related febrile illnesses.
    • HHV-6A lacks a confirmed etiological link to disease, though associations are anticipated.
    • HHV-6 reactivation is observed in immunocompromised individuals, potentially contributing to malignancies and neurological conditions like encephalitis and multiple sclerosis.

    Conclusions:

    • HHV-6B is a significant pediatric pathogen, while HHV-6A's disease associations require further research.
    • HHV-6 plays a role in both acute and chronic conditions, particularly in immunocompromised hosts and neurological disorders.
    • Further investigation is needed to clarify the specific roles of HHV-6 variants in diseases like Hodgkin's disease and multiple sclerosis.