Fig. 2.

Generation and maintenance of SARS-CoV-2-reactive IFN-γ⁺CD4⁺ T cells in con-valescent patients up to 256 days after onset of disease.

Frequency of SARS-CoV-2-N or S peptide mix-reactive IFN-γ⁺CD4⁺ T cells in convalescent patients up to 256 days after onset of disease, respectively (Fig. 2a and b). Regression lines, coefficient of variations (r²) and statistical significance (p-value) are depicted in the figures. Each symbol represents a single measurement.