Fig. 4

a. Numbers of total IgG antibody secreting cells (ASC) per 200,000 peripheral blood mononuclear cells (PBMC) pneumococcal vaccine naïve (n = 18) and previously immunized with 23-valent pneumococcal polysaccharide vaccine (PPV23) (n = 29) patients with severe chronic kidney disease on day 7 post-immunization with PCV13. The median is displayed counts above the upper limit of detection (200) were assigned a value of 210 (8 pneumococcal vaccine naïve and 13 previously immunized with PPV23). If no spots were detected, a value of 0.5 was assigned for statistical purposes. PPV23 naïve and PPV23 immunized each had 4 values below the limit of detection. Control wells coated with methylated human serum albumin were not displayed (all values were below the limit of detection). b. Numbers of IgG antibody secreting cells (ASC) specific for pneumococcal capsular polysaccharides of serotypes 6B or 14 per 200,000 peripheral blood mononuclear cell (PBMC) in pneumococcal vaccine naïve (n = 18) and previously immunized with 23-valent pneumococcal polysaccharide vaccine (PPV23) (n = 31) patients with severe chronic kidney disease 7 days post-immunization with PCV13 (median is shown). If no spots were detected a value of 0.5 was assigned for statistical purposes. For serotype 6B, 9 pneumococcal vaccine naïve and 16 previously immunized with PPV23 patients had ASC below the lower limit of detection. For serotype 14, 7 pneumococcal vaccine naïve and 13 previously immunized with PPV23 patients had ASC below the lower limit of detection. Control wells coated with methylated human serum albumin were not displayed (all below the limit of detection)