Tag: serum sickness-like reaction

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Serum Sickness-Like Reactions: Understanding Delayed Antibiotic Hypersensitivity in Children

Serum sickness-like reactions are delayed, non-allergic responses to antibiotics like cefaclor, mostly in young children. They cause rash, fever, and joint pain but resolve quickly - and don’t require lifelong antibiotic avoidance.

Katie Law, Mar, 24 2026