C3AR1 and myocarditis: We found that PEV reduced most of these markers during myocarditis, including CD45 (p = 0.0187), as well as CD11b (p = 0.0305), CD3 (p = 0.0087), F4/80 (p = 0.0177), and C3aR (p = 0.0007) compared to the PBS-treated control, while pmPEV only reduced C3aR (p = 0.0157) (Supplementary Figure 2; Supplementary Table 4).