Scabies

Lisa A. Spacek, M.D., Ph.D.
Scabies is a topic covered in the Johns Hopkins HIV Guide.

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PATHOGENS

  • Sarcoptes scabiei var. hominis, an obligate parasite, the "itch mite" burrows and reproduces under human skin. Transmission by prolonged skin-to-skin contact.
  • Scabere, to scratch, from Latin. Pruritis due to intense hypersensitivity reaction generated by mite, ova, and excrement, which occurs 2-6 wks after infestation.[11]
    • Symptomatic pruritis occurs once host it sensitized to mite antigens.[4]

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PATHOGENS

  • Sarcoptes scabiei var. hominis, an obligate parasite, the "itch mite" burrows and reproduces under human skin. Transmission by prolonged skin-to-skin contact.
  • Scabere, to scratch, from Latin. Pruritis due to intense hypersensitivity reaction generated by mite, ova, and excrement, which occurs 2-6 wks after infestation.[11]
    • Symptomatic pruritis occurs once host it sensitized to mite antigens.[4]

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Last updated: December 11, 2021