IHC analysis of all myocarditis cases from wave II and III revealed the expression of MHC1, VWF, Ang1, VEGF, and enteroviral VP1 (mainly in the walls of blood vessels; Table 4, lines 9–14); in five out of six cases—HLA-DR, in two out of six cases—CD8, and in four out of six cases—an expression of the C1q component of the complement. The gene discussed is CD8A; the disease is myocarditis.