Canis ISSN: 2398-2942

Prototheca wicherhamii

Synonym(s): P. wicherhamii

Contributor(s): Vetstream Ltd

Introduction

Classification

Taxonomy

  • Algae.

Active Forms

This article is available in full to registered subscribers

Sign up now to purchase a 30 day trial, or Login

Clinical Effects

Epidemiology

Habitat

  • Widespread in nature; raw and untreated sewage, animal waste.

Lifecycle

  • Multiplies by endosporulation in host tissues and the environment.

Transmission

  • By ingestion, percutaneously or by intramammary injection in dairy cows.

Pathological effects

  • Immunodeficiency in the host animal may be a predisposing factor.
  • Tissue reactions are pyogranulomatous.
  • Bovine: chronic progressive mastitis occurs.
  • Canine: disease is usually disseminated and accompanied by hemorrhagic diarrhea, ocular lesions.
  • Feline and human: disease is cutaneous.

Control

Control via animal

  • In dairy cows the affected animals are a danger to other cows and should be culled immediately.
  • Treatment of other animal species is not successful.

Control via chemotherapies

  • Not successful in animals (amphotericin B and ketoconazole are used in humans).

Diagnosis

This article is available in full to registered subscribers

Sign up now to purchase a 30 day trial, or Login

Further Reading

Publications

Refereed papers

  • Recent references from PubMed and VetMedResource.
  • Ginel P J, Pérez J, Molleda J M et al (1997) Cutaneous protothecosis in a dog. Vet Rec 140 (25), 651-653 PubMed.
  • Blogg J R & Sykes J E (1995) Sudden blindness associated with protothecosis in a dog. Australian Vet J 72 (4), 147-149 PubMed.
  • Thomas J B & Preston N (1990) Generalised protothecosis in a collie dog. Australian Vet J 67 (1), 25-27 PubMed.
  • Rakich P M & Latimer K S (1984) Altered immune function in a dog with disseminated protothecosis. JAVMA 185 (6), 681-683 PubMed.

ADDED