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Related Experiment Videos

First identification of a ranavirus from green pythons (Chondropython viridis).

A D Hyatt1, M Williamson, B E H Coupar

  • 1CSIRO, Division of Animal Health, Australian Animal Health Laboratory (AAHL), P.O. Bag 24, Geelong, 3220, Australia.

Journal of Wildlife Diseases
|June 1, 2002
PubMed
Summary

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A novel ranavirus caused systemic infection and death in illegally imported green pythons (Chondropython viridis). This iridovirus marks the first reported ranavirus in snakes, highlighting a new disease threat.

Area of Science:

  • Herpetology
  • Veterinary Pathology
  • Virology

Background:

  • Illegal wildlife trade poses risks for disease introduction.
  • Green pythons (Chondropython viridis) are frequently trafficked internationally.
  • Ranaviruses (family Iridoviridae) are known pathogens of fish, amphibians, and reptiles.

Purpose of the Study:

  • To identify the cause of mortality in illegally imported juvenile green pythons.
  • To characterize the isolated virus and determine its taxonomic classification.
  • To report the first instance of systemic ranavirus infection in snakes.

Main Methods:

  • Histologic examination of affected tissues (nasal mucosa, liver, pharyngeal submucosa).
  • Virus isolation and characterization using various molecular and immunological techniques (immunohistochemistry, electron microscopy, PCR, DNA sequencing, etc.).

Related Experiment Videos

  • Taxonomic classification of the isolated virus within the genus Ranavirus.

    • Main Results:

    • Histopathology revealed chronic nasal ulceration, hepatic degeneration/necrosis, and necrotizing pharyngitis.
    • A systemic iridovirus was successfully isolated from multiple tissues of affected snakes.
    • Molecular and biochemical analyses confirmed the virus as a novel member of the genus Ranavirus.

    Conclusions:

    • A novel ranavirus was identified as the causative agent of disease and mortality in green pythons.
    • This finding represents the first documented case of systemic ranavirus infection in snakes.
    • The study underscores the potential for novel pathogen emergence through the illegal wildlife trade.