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- Sarcoptes scabiei: a mite (an ectoparasite)
- Usual taxonomy divides mite based on host origin
- Recent data suggest mites are distributed into 3 genetically distinct clades, with most mites in the B and C clades; and therefore, all human scabies is not caused by a homogeneous population. It is currently unknown if different clades are associated with differential gene expression.
- Mites burrow into the stratum corneum and lay their eggs; new mites hatch and form new burrows.
- Scabies can be a major initiating factor in streptococcal pyoderma and linked to post-streptococcal sequelae such as acute rheumatic fever and acute post-streptococcal glomerulonephritis.