Hepatitis A: is a liver disease
caused by the hepatitis A virus (HAV). Hepatitis A can affect anyone. In the
United States, hepatitis A can occur in situations ranging from isolated
cases of disease to widespread epidemics.
Hepatitis B: is a serious disease caused by a
virus that attacks the liver. The virus, which is called hepatitis B virus (HBV),
can cause lifelong infection, cirrhosis (scarring) of the liver, liver
cancer, liver failure, and death.
Hepatitis C: is a liver disease caused by the
Hepatitis C virus (HCV), which is found in the blood of persons who have the
disease. HCV is spread by contact with the blood of an infected person.