Which virus is known to increase the risk of liver cancer?

The Hepatitis virus is known to increase the risk of liver cancer due to its direct impact on liver cells. Chronic infection with Hepatitis B or Hepatitis C can lead to long-term liver inflammation, cell death, and regeneration, which in turn increases the risk of mutations and cancerous transformations within the liver tissue. Over time, persistent infection can result in conditions such as cirrhosis and hepatocellular carcinoma, which is the most common form of liver cancer. In contrast, viruses like HIV, influenza, and the common cold virus do not primarily affect the liver in a way that would lead to cancer; they are associated with other health complications but not specifically with an increased risk of liver cancer.