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Question: Do serum soluble C5b-9 (sC5b-9) levels change following immunomodulatory therapy in children with multisystem inflammatory syndrome in children (MIS- C)?
Finding: In this longitudinal multicentric study of 100 children with MIS-C, serum sC5b-9 concentrations significantly decreased following treatment, although some patients showed persistently elevated levels at discharge.
Meaning: Serial sC5b-9 measurements may indicate treatment-associated immune activity and recovery in MIS-C. |