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5 Viruses increase the risk of cancer

5 Viruses increase the risk of cancer

It's known that there are many risk factors which increase the incidence of cancer, such as; family history, smoking, unhealthy life style… etc. On the same context, medical studies showed that there are certain viruses which may increase the risk of some types of cancer. Through this topic we will highlight the significant viruses which are defined as possible risk factors of cancer.

  1. Epstein-Barr virus: it causes mononucleosis, which is a treatable disease. But after recovery, the virus remains dormant (silent) in the body for life. In most cases, the silent virus is harmless, but sometimes it may trigger lymphoma (cancer of the lymphatic system).
  2. Human immunodeficiency virus (HIV): it's a blood-borne & sexual-transmitted virus. HIV infection leads to suppression of the immune system, which increases the incidence of AIDS as well as different forms of cancer such as; Kaposi sarcoma, lymphoma, anorectal cancer… etc.
  3. Human papilloma virus (HPV): it's a sexual-transmitted virus and usually causes genital warts. Most cases of HPV are treated successfully, but in certain circumstances it may cause cervical cancer in women.
  4. Hepatitis B & hepatitis C viruses: they are blood-borne & sexual-transmitted viruses. Patients with these viruses usually have hepatitis as well as liver cirrhosis which are predisposing factors for liver cancer.
  5. Human herpes virus 8 (HMV-8): it's a sexual-transmitted virus. It doesn't cause any symptoms in most cases. But in immunocompromised patients, it may cause Kaposi sarcoma.


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