The following is an excerpt....
BASICS
Description
- Serum sickness (SS): An acute type III hypersensitivity reaction; mediated by tissue deposition of IgG or IgM immune complexes:
- Classically described 1–3 weeks following administration of nonhuman serum or after exposure to certain medications, with peak around day 10 postexposure
- Most common current cause is exposure to nonprotein drugs such as penicillins and cephalosporins (1)
- System(s) affected: Hematologic/Lymphatic/Immunologic; Musculoskeletal; Skin/Exocrine; Cardiovascular; Gastrointestinal (GI); Genitourinary
- No sex or age predominance
- Serum sicknesslike reaction (SSLR): A specific drug reaction not associated with immune complexes (see Commonly Associated Conditions)
Epidemiology
Incidence
- Seen more commonly with β-lactam antibiotics; antibodies form against side chains
- Rate of cefaclor serum sicknesslike reaction (SSLR) has been estimated at approximately 0 ...
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