Chronic hepatitis C
Chronic hepatitis C is an infection caused by the hepatitis C virus (HCV). It is the most severe of the hepatitis infections, causing long-term inflammation of the liver (more than six months). Over time, HCV can cause scarring of the liver tissue (cirrhosis), liver cancer, and liver failure. Most people do not have symptoms or know that they have the hepatitis virus until the liver is damaged.
In rare cases, hepatitis C infection clears up on its own, but most people will require treatment with antiviral drugs. With newer drug regimens, many people can now be cured of the infection.
Chronic hepatitis B
Chronic hepatitis B is an infection of the liver that causes long-term swelling or inflammation, which can lead to severe liver conditions such as cirrhosis (scarring of the liver), liver failure and liver cancer.
Chronic hepatitis B can be transmitted through infected bodily fluids, including semen, saliva, vaginal fluids and blood. Early symptoms of infection may or may not occur and can range from mild to flu-like. Although symptoms may not be present, people infected with hepatitis B can transmit the infection to others. There is no cure for hepatitis B in either of its forms (acute or chronic). A hepatitis B vaccine is the only way to prevent infection.