Oncogenic viruses
| Virus family | Virus type | Associated tumors | Virus genome |
| Papilomaviridae
|
Human Papilomavirus | Genital warts and carcinoma |
DNA |
|
Polyomaviridae |
Polymavirus | Various carcinoma and sarcoma |
DNA |
| SV40 | Sarcoma in rodents | ||
| BK and John cunninghum virus (JC virus) | Polyoma in human and tumor in rodents | ||
|
Herpesviridae |
Herpes Simplex 1 & 2 | Cervical carcinoma | DNA |
| Cytomegalovirus (CMV) | Kaposi’s sarcoma, cervical neoplasia |
DNA |
|
| Epstein Barr virus (EBV) | Nasophayngal carcinoma, Buskitt’s lymphoma, B-cell lymphoma |
DNA |
|
| Hepatitis virruses | Hepatitis B Virus (HBV) | Primary hepatocellular carcinoma | DNA |
|
Pox viridae (pox viruses) |
Molluscum cantagiosum | Nodular epidermal hyperplasia |
DNA |
| Shope fibroma | fibroma | ||
| Yabavirus | Nodular fibromatous hyperplasia | ||
| Small pox | Various types of carcinoma | ||
| Chicken pox | Varius types of carcinoma | ||
| Adenoviridae | Adenovirus type 2,5 &12 | Sarcoma in hemsters, no human tumors | DNA |
| Sarcoma viruses | Avian sarcoma leucosis virus (ALV) complex | Various sarcoma, lymphoma and leukemia in birds |
RNA |
| Mouse leukemia and sarcoma virus | Various types of sarcoma in mouse | ||
| Feline leukemia virus | Feline leukemia virus | Leukemia and lymphosarcoma in cat | RNA |
|
Retroviridae |
Bovine leukemia | Lymphosarcoma in cattles |
RNA |
| Human T-lymphotropic virus (HTLV-I & II) | T-cell leukemia, lymphoma in human | ||
| Flaviviridae | Hepatitis C virus | Primary hepatocellular carcinoma (liver cancer) |
RNA |