Extended Data Fig. 6: Differentiation and senescence status of spike-specific CD4+ T cells.

(a) Frequency of NaĆÆve, Tscm, CM, EM, and TEMRA in AIM+ CD4+ T cells. (b) Frequency of CD28+ and CD57ā in AIM+ CD4+ T cells. The centerline and error bars indicate the median and interquartile range (IQR). Statistical comparisons across cohorts were performed using the Mann-Whitney test. ns, not significant. Blue and red dots represent adults (nā=ā107) and older adults (nā=ā109), respectively.