Oncogenic viruses are viruses that can cause cancer.

 Here is a simple sentence summary about oncogenic viruses and the kinds that cause cancer:

Oncogenic viruses are viruses that can cause cancer.

1. Some viruses, like retroviruses, put their DNA into human DNA.
2. This can cause changes in important genes that control how cells grow.
3. These viruses can stay in the body for a long time and cause chronic infections.
4. Long infections can lead to inflammation, which increases the risk of cancer.
5. Some viruses help the infected cell hide from the immune system, which helps both the virus and the cancer grow.

Examples of Oncogenic Viruses (and the cancers they cause):

• HPV (Human Papillomavirus)
  → causes cervical cancer and throat cancer.
• HBV and HCV (Hepatitis B and C Viruses)
  → cause liver cancer.
• EBV (Epstein-Barr Virus)
  → causes Burkitt’s lymphoma and nasopharyngeal cancer.
• HTLV-1 (Human T-lymphotropic virus)
  → causes adult T-cell leukemia.
• KSHV or HHV-8 (Kaposi’s sarcoma virus)
  → causes Kaposi’s sarcoma, especially in people with HIV.

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