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Slower proliferation of CD8+T cells after CD40.CoV2 vaccination. (a) Example of FACS plots of Ki67 staining of HIS-mouse spleens gated on human CD8+ T cells. (b) Percentage of Ki67+ CD8+ T cells among human CD8+ T cells. The CD40.CoV2 group versus BNT162b2 mRNA or IgG4.CoV2 groups were analyzed using the Mann–Whitney test. Median and individual values from two independent experiments are shown. ∗p < 0.05.
