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Dot plot of ELISA IgG concentrations for Fim2 plus Fim3, Fim2, and Fim3 pre- and postvaccination (with 5-component acellular pertussis vaccine) serum pairs in 15-month-olds after the 4th dose (A), 4- to 6-year-olds after the 5th dose (B), and 11- to 18-year-olds after the adolescent dose (C). n = 15 for each group. Bars indicate the geometric mean IgG concentrations.
