Figure 4.

Correlations between SARS-CoV-2-Specific CD4⁺ T Cells, Antibodies, and CD8⁺ T Cells

(A) Correlation between SARS-CoV-2 spike-specific CD4⁺ T cells (%) and anti-spike RBD IgG.

(B) Correlation between SARS-CoV-2 non-spike-specific CD4⁺ T cells (%) and anti-spike RBD IgG.

(C) Correlation between SARS-CoV-2-specific CD4⁺ T cells and SARS-CoV-2-specific CD8⁺ T cells. Total MP responses per donor were used in each case (“Non-spike” + “spike” (CD4_R + MP_S) for CD4⁺ T cells, CD8_A + CD8_B for CD8⁺ T cells).

Statistical comparisons were performed using Spearman correlation. See also Figure S5.