CD8+ T-cells-enriched myocarditis persisted at 90 dpi (R1 gate: 47.6–73.6% TCRαβ+: 17.3–19.4% TCR TCRαβ+CD4+vs. 28.2–51% TCR TCRαβ+CD8+, two independent experiments) when the highest level of CK-MB activity in the serum, demarking the cardiomyocyte lesion (Figure 1C), was detected. Here, CD4 is linked to myocarditis.