Viruses That Cause Cancer

Cancer is a complex group of diseases with many possible causes. Some viruses can cause or contribute to the development of cancer.

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Hpv often goes away on its own and doesn t cause any health problems.

Viruses that cause cancer. Viruses known to cause cancer. Treatments that cure bacterial infections are not useful in the treatment of viral infection. In the united states high risk hpvs cause 3 of all cancers in women and 2 of all cancers in men.

These viruses are called oncogenic viruses. Viruses are not the same as bacteria although both can cause human disease. Some examples of viruses include the agent that causes the flu influenza virus and the causative agent of aids the human immunodeficiency virus hiv.

Certain types of infections. A number of different viruses have been associated with cancer. Cancer viruses come from a range of virus families including both rna and dna viruses and so there is no single type of oncovirus an obsolete term originally used for acutely transforming.

Experts don t fully understand how most known oncoviruses cause cancer. Viral cancers occur only in a minority of infected persons or animals. Hpv can spread during vaginal or anal sex.

Viruses are an established cause of cancer in humans and other species. Both dna or rna viruses can cause cancer. In this section you can learn more about the known causes of cancer including genetic factors.

Lifestyle factors such as tobacco use diet and physical activity. Worldwide the burden of hpv related cancers is much greater. The effects of these viruses on cancer development is highly complicated.

This can cause the host cells to become cancerous. These are called high risk types. But around 13 types of hpv can cause cancer.

There are about 44 000 new cases of cancer in parts of the body where hpv is often found and hpv is estimated to cause about 34 000 cancers each year according to the latest statistics from the centers for disease control. And environmental exposures to different types of chemicals and radiation. These people are more likely to go on to develop cancer.

What is known is that viruses highjack cells and insert their own dna or rna into the host cell. For some people that have a high risk hpv infection for a long time the virus can damage dna and cause cells to start dividing and growing out of control. Typically a virus causes a specific type or a few types of cancer due to the way it interacts with the body.

Hpv is a group of more than 200 viruses and at least a dozen of them can cause cancer. Unlike other viruses such as influenza viruses that cause an acute infection. Other viruses can also cause hepatitis hepatitis a virus for example but only hbv and hcv can cause the long term chronic infections that increase a person s chance of liver cancer.

In the united states less than half of liver cancers are linked to hbv or hcv infection.

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