In the DU vs XP comparison, the results of KEGG enrichment analysis (Fig. 10c) revealed that eight pathways involved in the immune system or infectious diseases were significantly enriched, including Th1 and Th2 cell differentiation, graft-versus-host disease, allograft rejection, Th17 cell differentiation, intestinal immune network for IgA production, human immunodeficiency virus 1 infection, autoimmune thyroid disease, and human T-cell leukemia virus 1 infection. This evidence concerns the gene CD79A and infectious disease.