Virus and Cancer

Viruses are microscopic 'organisms' that infect the cells of other animals and plants. Human cancer has been related to a number of viruses. When viruses cause an infection, their DNA spreads throughout the body, altering the genetic makeup of healthy cells and potentially leading to cancer. Viruses have been found to play a role in the biology of multistep oncogenesis and are linked to a number of cancer manifestations. Virus infections are thought to be responsible for 15–20 percent of all human cancers. Vaccines to help prevent specific human cancers have been developed as our knowledge of the role of viruses as a cause of cancer has expanded.

• Human tumor viruses
• Epstein-Barr virus (EBV)
• Human Papilloma Viruses (HPV)
• Hepatitis B virus (HBV)
• hepatitis C virus (HCV)
• Human immunodeficiency virus (HIV)
• Human herpes virus 8 (HHV-8)
• Other Oncogenic viruses
• Vaccines and Its Development