Association of TT-specific memory T cell responses with SBA titre pre- and post- boost.

<p>TT-specific CD4+CD154+ T cells at M6 and M7 were plotted against log-transformed M12 Men C SBA (A and B) and M13 SBA (C and D). M12 TT-specific CD4+CD154+ T cells were plotted against log-transformed M13 SBA values (E). TT-specific CD4+CD154+ T cells at M6 and M7 were plotted against log-transformed M12 Men Y SBA (F and G) and M13 SBA (H and I). M12 TT-specific CD4+CD154+ T cells were plotted against log-transformed M13 SBA values (J). Linear regression analyses were performed to determine statistically significant associations where r = r² value and n = number of subjects.