Cancer
Is cancer caused by a virus or bacteria? So yes, viruses and bacteria cause some cancers. Some estimations show that about 16% of cancers are caused by bacteria or viruses. Viruses that cause cancers are known as oncoviruses. The following are the major known cancer-causing viruses: Epstein-Barr Virus (EBV) is a herpes virus (orally transmitting), which spreads through saliva. Infections caused by EBV increase the risk of stomach cancer, Burkitt lymphoma, and some types of Hodgkin’s and non-Hodgkin’s lymphoma (cancers that start in the lymphatic system, which is part of the germ-fighting immune system in the human body). Hepatitis B Virus (HBV) spreads through the infected body fluids, such as blood, semen, and other body fluids. HBV is one of the main causes of liver cancer. Hepatitis C Virus (HCV) spreads through the infected blood. It is a major cause of liver cancer and non-Hodgkin’s lymphoma. Human Immunodeficiency Virus (HIV) spreads through the infected blood, semen, vegi