Rhinosporidium seeberi

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Sections available in full article Classification, Distribution, Significance, Active Forms, Active Form 1, Active Form 2, Clinical Effects, Epidemiology, Pathological effects, Control, Diagnosis, Useful samples, Laboratory diagnosis, Sources, Publications, Vetstream contributor(s),
Contributors Dr Susan Dawson BVMS PhD MRCVS
Prof Susan Bunch DVM PhD DipACVIM

Classification


Taxonomy

  • Class: Mesomycetozoea (previously Icthyosporea ).
  • Order: Icthyophonida.
  • Genus: Rhinosporidium.
  • Species: seeberi.
  • Belongs to a novel clade of aquatic protistan parasites which that are on the boundary between animals and fungi.
  • Previously described as a fungal organism of unknown classification.

Distribution

  • Endemic in India, Sri Lanka and Argentina.
  • Sporadic occurrence in United States.
  • Rarely reported from human cases in Europe.

Significance

  • Cause of disease in domestic animals including dogs, cats and horses, people and birds.
  • Cutaneous and sub-cutaneous disease (mucosal).
  • In dogs and cats rarely systemic disease - usually limited to mucous membranes of nasal cavity.
  • Disease characterized by the development of polyps  Rhinosporidiosis  .

Sources

Publications

  • Mendoza L, Taylor J W & Ajello L (2002)The class Mesomycetozoea: a heterogenous group of microorganisms at the animal-fungal boundary.Annual Review Microbiology.56, 315-344.PubMed
  • Levy M G, Meuten D J & Breitschwerdt E B (1986)Culture ofRhinosporidium seeberiin vitro: interaction with epithelial cells.Science.234, 474-476.PubMed

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