DNA virus: HBV (Hepatocellular carcinoma) · HPV (Cervical cancer) · Kaposi's sarcoma-associated herpesvirus (Kaposi's sarcoma) · Epstein-Barr virus (Nasopharyngeal carcinoma, Burkitt's lymphoma, Primary central nervous system lymphoma) · MCPyV (Merkel cell cancer) · SV40
IV: SARS coronavirus (Severe acute respiratory syndrome)
V, Orthomyxoviridae: Influenzavirus A/B/C (Influenza/Avian influenza)