Difference between revisions of "Sarcoptic Mange"

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'''[[Sarcoptic Mange - Sheep|In Sheep]]'''
 
'''[[Sarcoptic Mange - Sheep|In Sheep]]'''
  
 +
'''[[Sarcoptic Mange - Horse|In Horses]]'''
  
'''Horses'''
+
[[Category:Parasites]][[Category:Mites]]
*'''Notifiable in UK'''
 
 
 
*Lesions begin on head, neck and shoulders then spread to rest of body[[Category:Parasites]][[Category:Mites]]
 

Revision as of 22:37, 30 March 2010

Transmission

Puppy with sarcoptic mange - Wikimedia Commons
  • Close contact
  • Adults and larvae can be transferred from one skin surface to another

Pathogenesis

  • Erythema with papule formation
  • Scale and crust formation
    • Alopecia
  • Intense pruritus for 1 week
    • Self-inflicted trauma
    • Scab formation
  • Wrinkling and thickening of skin


Sarcoptes scabiei

  • Strains of S. scabiei can be passed between different animals and cause clinical signs although the infection is likely to resolve spontaneously and be unlikely to establish

Diagnosis

  • Skin scraping until capillary blood appears
    • Adults, eggs, immature mites and faecal pellets can be seen microscopically
  • Place material on a microscope slide
  • Add 10% KOH
  • Warm slide over bunsen flame

Treatment

  • Acaricide
    • For more information on acaricides click here
  • Treat both infected and in-contact animals
  • Older products have to be given in repeat treatments
  • Avermectins are effective in farm animals
  • Selamectin is available as a good spot-on for dogs


In Dogs

In Cats

In Pigs

In Cattle

In Sheep

In Horses