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PsA-TT-003 and PsA-TT-003a. Anti–tetanus toxoid (TT) immunoglobulin G (IgG) geometric mean concentrations (GMCs) (with 95% confidence interval [CI]) for healthy Africans aged 2–10, 11–17, and 18–29 years and Indians aged 2–10 years following vaccination with either meningococcal A conjugate vaccine or meningococcal ACWY polysaccharide vaccine.
