FIG. 4.

Aggregate reverse cumulative distribution curves of anti-PS IgG concentrations measured in pediatric sera after immunization with a nine-valent pneumococcal conjugate vaccine for comparison of the THL non-22F ELISA and 22F ELISA (study D) by using the concentration of antibodies against pneumococcal serotypes 1, 6B, 14, 19F, and 23F. Data for two groups of vaccinated children, HIV-infected children (n = 20) and non-HIV-infected children (n = 58), were pooled. The data from both groups combined were used to prepare the RCDCs.