Contributes to tumors by binding of viral E6 and E7 proteins to cellular p53 and Rb tumor-suppressor proteins, respectively. C. Hepatitis B Virus 1. Active infection imparts a 200-fold risk of hepatocellular carcinoma. D. Epstein-Barr Virus 1. Infects oropharyngeal epithelial cells and lymphocytes of nearly everyone before adulthood.
Carriers shed virus in their saliva.
E. Kaposi's Sarcoma-Associated Herpesvirus 1. Probably sexually transmitted 2. Induces Kaposi's sarcoma, frequently in AIDS patients. V. Radiation-Induced Cancer A. Types of cancer associated with radiation 1.