Different preparations of intravenous immunoglobulin vary in their efficacy to neutralize streptococcal superantigens: implications for treatment of streptococcal toxic shock syndrome.

Schrage, Birgit; Duan, Guowen; Yang, Lily P; Fraser, John D; Proft, Thomas · Clin Infect Dis · 2006

case_control · Level III

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Abstract

Eight different batches of intravenous immunoglobulin from 3 different manufacturers were tested for neutralizing activities against all currently known streptococcal superantigens. Statistically significant variation among different intravenous immunoglobulin preparations (P<.0001) and between individual streptococcal superantigens (P<.0001) was observed. These results might be helpful for optimizing the type and dose of intravenous immunoglobulin used in adjunctive therapy for severe invasive streptococcal disease.

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