Figure 2.

Impact of primary SARS‐CoV‐2 infection on relative amounts of T cell subpopulations and TREC levels as determined 10 weeks after disease onset. Shown are the relative values of selected T cell subpopulations in PB of healthy control subjects (HC) and COVID‐19 convalescent patients (COVID‐19). Bars show mean values, whiskers the standard deviation, and open circles the values of single individuals. Data show pooled results of daily stainings (whole blood, 5‐9 individuals per day) and TREC analyses of n = 98 for HC, and n = 109 for COVID‐19 convalescent patients, except for panels determining CD25/Foxp3 n = 97 for HC; and CD45RO/CCR7 n = 95 for HC and n = 105 for COVID‐19. P‐values were determined by Mann‐Whitney U‐test and are indicated. TREC, T cell receptor excision circles