Editing Scabies (section)

=== Crusted scabies ===
[[File:Norwegian Scabies in Homeless AIDS Patient.jpg|thumb|Crusted scabies in a person with AIDS]]

The elderly, disabled, and people with [[immunodeficiency|impaired immune systems]], such as those with HIV/AIDS, cancer, or those on [[Immunosuppressive drug|immunosuppressive medications]], are susceptible to crusted scabies (also called Norwegian scabies).<ref name=Ray2009 /><ref name=Bouvresse-2010 /><ref name=pmid19580575>{{cite journal | vauthors = Hicks MI, Elston DM | title = Scabies | journal = Dermatologic Therapy | volume = 22 | issue = 4 | pages = 279–292 | year = 2009 | pmid = 19580575 | doi = 10.1111/j.1529-8019.2009.01243.x | s2cid = 221647574 | doi-access = free }}</ref> On those with weaker immune systems, the host becomes a more fertile breeding ground for the mites, which spread over the host's body, except the face. The mites in crusted scabies are not more virulent than in noncrusted scabies but are much more numerous, sometimes up to two million. People with crusted scabies exhibit scaly rashes, slight itching, and thick crusts of skin that contain large numbers of scabies mites. For this reason, persons with crusted scabies are more contagious to others than those with typical scabies.<ref name=CDC2010Epi/><ref name=CDC>{{cite web | url = http://www.dpd.cdc.gov/dpdx/HTML/Scabies.htm | title = DPDx – Scabies | work = Laboratory Identification of Parasites of Public Health Concern | publisher = CDC | url-status = live | archive-url = https://web.archive.org/web/20090220123307/http://dpd.cdc.gov/dpdx/html/scabies.htm | archive-date = 2009-02-20 }}</ref> Such areas make eradication of mites particularly difficult, as the crusts protect the mites from topical miticides/scabicides, necessitating prolonged treatment of these areas.{{citation needed|date=July 2020}}