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This Concept Map, created with IHMC CmapTools, has information related to: Answers_viruses and cancer, Epstein-Barr virus (EBV) linked primarily to lymphomas in immunosuppressed individuals, Around 15% of the world's cancers are associated with 5 viruses. frequency of occurrence Most virus-associated cancers have latency periods of several decades; only a small percentage of the people infected with the virus actually develop the cancer., hepatitis B virus (HBV) link between chronic infection with HBV and liver cancer, some sexually-transmitted strains of HPV are associated with cervical, vulvar, vaginal, penile, and anal cancers HPV strains HPV-16 and HPV-18 are responsible for approximately 70% of cervical cancer in the US., chronic infection with HBV and liver cancer significance responsible for 60% of all liver cancer cases worldwide, human T-lymphotropic virus type I (HTLV-I) linked to rare adult T-lymphocyte leukemia-lymphoma, Around 15% of the world's cancers are associated with 5 viruses. virus human papilloma viruses (HPV), warts, genital warts genital warts some sexually-transmitted strains of HPV are associated with cervical, vulvar, vaginal, penile, and anal cancers, chronic infection with HBV and liver cancer chronic HBV infection Approximately 90% of infected infants, 30% of infected children less than 5 years of age, and 2-6% of infected adults become chronically infected., chronic infection with HCV and liver cancer chronic HCV infection Between 70% and 85% of individuals infected with HCV become chronic carriers., human papilloma viruses (HPV) causes warts, genital warts, hepatitis C virus (HCV) causes hepatitis, hepatitis B virus (HBV) causes hepatitis, Most virus-associated cancers have latency periods of several decades; only a small percentage of the people infected with the virus actually develop the cancer. therefore other factors promoting changes in cellular genes are also involved, growth-promoting proto-oncogenes function regulate proliferation of normal cells, regulate proliferation of normal cells significance to tumor production Mutations that increase the activities of proto-oncogenes and/or decrease the activities of tumor suppressor genes can lead to growth of tumors., Around 15% of the world's cancers are associated with 5 viruses. genes regulating cell proliferation growth-promoting proto-oncogenes, The Role of Viruses in Tumor Production virus-associated cancers Around 15% of the world's cancers are associated with 5 viruses., Around 15% of the world's cancers are associated with 5 viruses. virus hepatitis C virus (HCV), Epstein-Barr virus (EBV) causes infectious mononucleosis
