Difference between revisions of "Demodicosis"

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[[Category:Demodicosis]]

Revision as of 22:27, 1 April 2010

Caused by Demodex

Pathogenesis and epidemiology

  • Squamous demodecosis
    • Less serious
    • Dry reaction
    • Alopecia, desquamation and skin thickening
    • Absent to mild pruritus
  • Follicular/pustular demodecosis
    • More serious
    • Skin invasion by staphylococci
    • Skin becomes wrinkled, thickened and contains pustules which ooze serum, blood or pus
    • Affected animals may be seriously disfigured
    • Severe pruritus is associated with secondary infection
  • Immune factors are important in determining the severity and occurrence of demodecosis
    • Familial susceptibility
    • Immunosuppression
    • Immunosuppressant therapy

Diagnosis

  • Liquid paraffin applied to a skin fold
  • Deep skin scraping

Control

  • Not easily accessible to acaricides due to their deep location in the skin
  • Repeat treatments needed
  • Recovery may take several months
  • To aid acaricide penetration, clipping a dog's coat and washing is recommended


Dogs

Cats

Cattle

Goats

Pigs

Sheep

Horses