Notably, HLA-C was significantly enriched in the pathways and these pathways were similar to the above mentioned PN and KN groups intersecting KEGG pathways, including herpes simplex infection, cell adhesion molecules (CAMs), phagosomes, Epstein-Barr virus infection, viral oncogenesis, and endocytosis, in addition to the eight pathways mentioned above (Table 3). Here, HLA-C is linked to Epstein-Barr virus infection.