Final answer:
Hepatitis B and Hepatitis C can cause inflammation of the liver which can be chronic and last for up to 6 months. In some cases, these viruses can lead to liver damage and increase the risk of liver cancer.
Step-by-step explanation:
The virus that can cause inflammation of the liver, which can last up to 6 months and become chronic, is Hepatitis B and Hepatitis C. Hepatitis B is caused by infection with the hepatitis B virus, and in some cases, the virus can remain in the body and cause continued illness and liver damage. Hepatitis C is also caused by a viral infection and can lead to chronic liver disease.