ABCG2 and herpes simplex infectious disease: For the CKb vs. Tb comparison, 24 DEGs were enriched in the 32 KEGG pathways, among which 13 pathways (40.6%) belonged to metabolism pathways, and the main enrichment pathways contained herpes simplex infection, ascorbate and aldarate metabolism, fatty acid biosynthesis, drug metabolism—other enzymes, and ABC transporters (Figure 4B and Table S4).