The DEGs identified in healthy pigs vs. cohabiting asymptomatic pigs were mainly involved in protein processing, endocytosis, the B cell receptor signaling pathway, the MAPK signaling pathway, transcriptional dysregulation in cancer, the spliceosome, the NF-κB signaling pathway, and FcγR-mediated phagocytosis in the endoplasmic reticulum (Supplementary Figures S2A–D). Here, NFKB1 is linked to cancer.