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Deformed wing virus.

Joachim R de Miranda1, Elke Genersch

  • 1Department of Ecology, Swedish University of Agricultural Sciences, 750-07 Uppsala, Sweden.

Journal of Invertebrate Pathology
|November 14, 2009
PubMed
Summary
This summary is machine-generated.

Deformed wing virus (DWV) in honeybees causes severe symptoms and death, especially when transmitted by Varroa destructor mites. This review explores DWV genetics, transmission, and evolution of virulence.

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Area of Science:

  • Virology
  • Entomology
  • Apiculture

Background:

  • Deformed wing virus (DWV) is a significant pathogen affecting honeybees (Apis mellifera).
  • DWV infection alone typically shows no visible symptoms or fitness impact.
  • Its association with Varroa destructor mite infestation is critical for disease development.

Purpose of the Study:

  • To review historical and recent data on DWV and related viruses.
  • To cover the genetics, pathobiology, and transmission of DWV.
  • To discuss DWV within broader concepts of viral evolution and virulence.

Main Methods:

  • Literature review of scientific publications on DWV and honeybee health.
  • Synthesis of data on viral genetics, host-pathogen interactions, and transmission dynamics.
  • Theoretical discussion on RNA virus population structure and virulence evolution.

Main Results:

  • DWV transmission by Varroa destructor to developing honeybee pupae leads to severe clinical symptoms.
  • Symptoms include pupal death and adult bees with deformed wings, shortened abdomens, and discoloration.
  • Affected adult bees exhibit reduced viability and premature mortality.

Conclusions:

  • Varroa destructor mite is a key factor in DWV-induced honeybee mortality and colony decline.
  • Understanding DWV's genetic variability and transmission is crucial for bee health management.
  • Further research into the evolution of DWV virulence can inform strategies to mitigate its impact.