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Viruses, virulence and pathogenicity

J Hibbs1, N S Young

  • 1Department of Internal Medicine, University of Minnesota Hospitals, Minneapolis 55455, USA.

Bailliere'S Clinical Haematology
|March 1, 1995
PubMed
Summary
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Viral pathogenicity requires host cell entry, replication, and damage mechanisms. Identifying virus-disease links necessitates considering host factors and common cellular damage pathways.

Area of Science:

  • Virology
  • Pathogenesis
  • Immunology

Background:

  • Pathogenicity is a complex biological process involving interactions between a virus and its host.
  • Successful viral infection requires specific viral and host cell factors, including entry, replication, and mechanisms of cellular damage.

Purpose of the Study:

  • To elucidate the multifaceted requirements for viral pathogenicity.
  • To highlight the diverse mechanisms by which viruses damage host cells.
  • To emphasize the importance of host factors in viral disease development.

Main Methods:

  • Review of established virological and immunological principles.
  • Analysis of known viral replication cycles and pathogenesis.
  • Examination of cellular damage pathways induced by viral infections.

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Main Results:

  • Viral pathogenicity depends on a virus's ability to enter, replicate within, and damage host cells.
  • Mechanisms of host cell damage include transformation, metabolic suppression, apoptosis, autoimmune responses, and molecular mimicry.
  • Variable host factors, alongside viral infection, are crucial for disease development.

Conclusions:

  • Understanding viral pathogenicity requires a comprehensive view of viral and host interactions.
  • Identifying specific virus-disease associations is challenging due to common final pathways of cellular damage.
  • Future research should consider both viral and host determinants in studying infectious diseases.