Helper virus

A helper virus is a virus that allows an otherwise-deficient coinfecting virus to replicate. These can be naturally occurring as with Hepatitis D virus, which requires Hepatitis B virus to coinfect cells in order to replicate. Helper viruses are also commonly used to replicate and spread viral vectors for gene expression and gene therapy.[1]

See also

  • Helper dependent virus
  • Virophage

References

  1. ^ Graham BS, Crowe JE, Ledgerwood JE (2007). "14 - Immunization Against Viral Diseases". In Knipe DM, Howley PM (eds.). Fields Virology (6 ed.). Wolters Kluwer Health. p. 403.
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Self-replicating organic structures
Cellular life
Virus
Subviral
agents
Viroid
Helper-virus
dependent
Satellite
  • ssRNA satellite virus
  • dsDNA satellite virus (Virophage)
  • ssDNA satellite virus
  • ssDNA satellite
  • dsRNA satellite
  • ssRNA satellite (Virusoid)
  • Satellite-like nucleic acids
    • RNA
    • DNA
Other
Prion
Nucleic acid
self-replication
Mobile genetic
elements
Other aspects
Endosymbiosis
Abiogenesis
See also


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