Difference between revisions of "Otodectes cynotis"

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[[File:Otodectes cynotis.jpg|thumb|200px|right|Otodectes cynotis (Courtesy of C. Antonczyk)]]
 
[[File:Otodectes cynotis.jpg|thumb|200px|right|Otodectes cynotis (Courtesy of C. Antonczyk)]]
  
*Causes [[Otodectic Dermatosis|otodectic skin infestation]]
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Otodectes cynotis mites are [[Non-Burrowing Mites|surface mites]]. They are *Causes [[Otodectic Dermatosis|otodectic skin infestation]]
  
 
*Commonest mange of dogs and cats in the world
 
*Commonest mange of dogs and cats in the world

Revision as of 06:51, 11 July 2010



Otodectes cynotis (Courtesy of C. Antonczyk)

Otodectes cynotis mites are surface mites. They are *Causes otodectic skin infestation

  • Commonest mange of dogs and cats in the world
  • Inhabits the inner ear
  • Also found in the fox and the ferret
  • Closed keratinous bars (apodemes) on ventral surface
  • Life cycle takes 3 weeks
  • Feeds on ear debris


Pathogenesis

  • The majority of cats harbour the mites, however only a few show symptoms
    • Transmission occurs whilst kittens are suckling
  • Brown waxy exudate produced
  • Can lead to secondary infection
  • Clinical signs are apparent
    • Head shaking
    • Ear scratching
    • Aural haematomata


Treatment

  • Acaracidal ear drops
    • Massage base of ear to disperse drops after treatment
  • Most treatments need to be repeated in 10-14 days to kill newly hatched mites
  • Selamectin can be used as a spot-on treatment
    • Prolonged duration of action
  • Treat all in-contact animals
    • These may be asymptomatic carriers