CD79A and staphylococcus aureus infection: By comparison of the top KEGG pathways enriched in DEGs in ECHDC3high and ECHDC3low groups, it showed that these marker genes mainly enriched in the phagosome, the intestinal immune network for IgA production, cell adhesion molecules, viral myocarditis, viral myocarditis, allograft rejection, antigen presentation, type I diabetes mellitus, and staphylococcus aureus infection (Figure S3C).