These treatments include growth factors like epithelial growth factor receptor (EGFR) which is overexpressed in many tumors [31], tumor necrosis factor alpha (TNFα) which is a key proinflammatory protein in many autoimmune diseases [32], interferon-alpha (IFNα) which is used to treat chronic viral hepatitis [33], and AIDS-related Kaposi's Sarcoma [34], to name a few. The gene discussed is TNF; the disease is animal viral hepatitis.