Around 10 percent of cancer cases worldwide are thought to be caused by viruses, and the majority of these affect people in developing countries.
Many virus-associated cancers can take years to become symptomatic, which makes it difficult to know this percentage with certainty.
If you have been diagnosed with a virus that is associated with cancer, you could be at increased risk of developing the associated type of cancer.
If you have a known risk, it is important that you keep up with recommended screenings and preventative strategies to avoid the potentially serious consequences of cancer.