Canis ISSN: 2398-2942

Demodex canis, Demodex cornei and Demodex injai

Synonym(s): D. canis, D. cornei, D. injai, stumpy Demodex mite, long-bodied Demodex mite

Contributor(s): Karen Campbell, David Scarff, David Godfrey

Introduction

Classification

Taxonomy

  • Family: Demodicidae.
  • Genus: Demodex.

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Clinical Effects

Epidemiology

Lifecycle

  • See lifecycle diagram Lifecycle Demodex canis - diagram :
    • Eggs.
    • Larva.
    • Nymph.
    • Adult.

Transmission

  • Direct transmission from bitch to puppies in first 2-3 days of life.
  • Requires very close contact when mites pushed up from follicles in bitch's skin transfer to the puppy's skin and enter the hair follicles.
  • Transfer occurs at sites of closest contact when suckling; accounts for the predominance of initial lesions in pups in the perioral and periocular areas of the head and the dorsal aspects of the distal limbs, particularly the forelimbs.

Control

Control via animal

  • Treatment of disease associated with these parasites is detailed in Skin: demodectic mange Skin: demodectic mange.

Further Reading

Publications

Refereed papers

  • Recent references from VetMed Resource and PubMed.
  • Sastre N, Ravera I, Villanueva S et al (2012) Phylogenetic relationships in three species of canine Demodex mite based on partial sequences of mitochondrial 16S rDNA. Vet Dermatol 23, (6), 509-e101 PubMed
  • Desch C E & Hillier A (2003) Demode xinjai: a new species of hair follicle mite (Acari: Demodecidae) from the domestic dog (Canidae). J Med Entomol 40, 146 PubMed.
  • Saridomichelakis M, Koutinas A, Papdogiannakis E, Papazachariadou M, Liapi M & Trakas (1999) Adult-onset demodicosis in two dogs due to Demodex canis and a short-tailed demodectic mite. JSAP 40(11), 529-532.
  • Chesney C J (1999) Short form of Demodex species mite in the dog - occurrence and measurements. JSAP 40(2), 58-61.
  • Lemarie S L (1996) Canine demodicosis. Comp Cont Ed Vet Pract 18, 354-368 (Review).
  • Ginel P J (1996) Canine demodicosis. Waltham Focus6, 2-7 (Review).
  • Caswell J L, Yager J A, Ferrer L & Weir J A M (1995) Canine demodicosis - a re-examination of the histopathologic lesions and description of the immunophenotype of infiltrating cells. Vet Derm 6, 9-19 (Description of histopathology).
  • Medleau L & Willemse T (1995) Efficacy of daily amitraz on generalised demodicosis in dogs. JSAP 36, 3-6 (Daily amitraz for previously amitraz-resistant cases).
  • Nutting W B & Desch C E (1978) Demodex canis: redescription and reevaluation. Cornell Vet 68, 139 PubMed.

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