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Propagating and Detecting an Infectious Molecular Clone of Maedi-visna Virus that Expresses Green Fluorescent Protein
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Maedi-Visna virus: current perspectives.

Esperanza Gomez-Lucia1, Nuria Barquero1, Ana Domenech1

  • 1Department of Animal Health, Faculty of Veterinary Medicine, Complutense University, Madrid, Spain, duato@ucm.es.

Veterinary Medicine (Auckland, N.Z.)
|July 28, 2018
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Summary
This summary is machine-generated.

Small ruminant lentiviruses (SRLVs), including Maedi-Visna virus (MVV), cause lifelong infections with respiratory, mammary, joint, and neurological symptoms. This review explores how SRLVs evade host defenses.

Keywords:
genetic resistanceimmune responsemolecular biologysmall ruminant lentivirus

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Area of Science:

  • Veterinary Virology
  • Immunology

Background:

  • Maedi-Visna virus (MVV) and caprine arthritis-encephalitis virus are small ruminant lentiviruses (SRLVs).
  • SRLVs cause lifelong infections with slow disease progression.
  • Infections manifest as respiratory, mammary, joint, and neurological diseases.

Purpose of the Study:

  • To review the immune evasion strategies of small ruminant lentiviruses (SRLVs).

Main Methods:

  • Literature review of SRLV pathogenesis and host-pathogen interactions.
  • Analysis of viral mechanisms counteracting host immune responses at cellular, body, and flock levels.

Main Results:

  • SRLVs establish persistent infections by overcoming host immune defenses.
  • Monocyte-derived macrophages are key sites for chronic viral production.
  • SRLVs employ various strategies to evade immune surveillance and elimination.

Conclusions:

  • Understanding SRLV immune evasion is crucial for developing effective control strategies.
  • Further research into viral countermeasures can inform therapeutic and preventative approaches.
  • SRLVs pose a significant challenge to small ruminant health due to their sophisticated evasion tactics.