Which patient populations are susceptible to crusted scabies?

Updated: Oct 13, 2020
  • Author: Megan Barry, MD; Chief Editor: Dirk M Elston, MD  more...
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Answer

Certain patient populations are susceptible to crusted scabies. These include patients with primary immunodeficiency disorders or a compromised ability to mount an immune response secondary to drug therapy. A modified host response may be a key factor in patients with malnutrition. Motor nerve impairments result in the inability to scratch in response to the pruritus, thus disabling the utility of scratching to remove mites and destroy burrows. Rare cases have been described in which immunocompetent patients have developed the crusted variant without clear explanation.


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