Finally, 17 genes were identified (AHNAK2, FARP1, BCL2, DRD1, FZD1, CYP1A1, TP73, NFATC2, TGFB2, ABCG2, RET, DRD2, CPT1A, PGF, FABP3, LOX, SLC47A1) as the genes related to drug susceptibility or resistance silenced by EBV infection. The gene discussed is CYP1A1; the disease is Epstein-Barr virus infection.