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Summary of GAS emm-types that showed >50% bactericidal killing in the presence of 30-valent vaccine antisera. Non-vaccine emm-types that were cross-opsonized by the rabbit antisera (solid bars) accounted for 47% of the total GAS in the collection. Together with vaccine emm-types in the collection (open bars), potential coverage of the vaccine could reach 84% of the total GAS recovered (solid circles).
