Skip to main content
. 2024 Apr 30;230(3):e605–e615. doi: 10.1093/infdis/jiae215

Figure 2.

Figure 2.

Proportion of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) spike (S)–specific CD4+ and CD8+ T cells before and after third and fourth vaccine dose. S-specific CD4+ (n = 391; A) and CD8+ (n = 385; B) T cells before and after a third vaccine dose (days 190 and 255, respectively). S-specific CD4+ (n = 184; C) and CD8+ (n = 181; D) T cells before and after a fourth vaccine dose (days 540 and 570, respectively). Violin plots show the kernel density estimation of the underlying distribution. Boxplots show median, and whiskers extend to show 1.5 × interquartile range. Data are compared using the Wilcoxon signed-rank test. Not significant (ns), 5.00 × 10-2 < P; ****P ≤ 1.00 × 10-4. The y-axis scale differs between panels.