Hepatitis A - An inflammatory viral disease of the liver with a short incubation period. Hepatitis A may be transmitted by eating contaminated food, by fecal-oral contact, and/or through household contact. Hepatitis A may be mild to severe; symptoms include fever, nausea, and jaundice.
Hepatitis B - Formerly called serum hepatitis, it is caused by the hepatitis B virus. About 12% of cases progress to chronic hepatitis. It is spread through shared needles, through sexual contact with infected individuals, through exposure to infected body fluids, and from mother to child. Common symptoms include abdominal pain, fatigue, fever, jaundice, and elevated liver enzymes.
Hepatitis C - is a life-threatening, disease of the liver, which is transmitted by exposure to blood. A particularly dangerous form of viral hepatitis, it is caused by an RNA virus. Hepatitis C can lead to serious, permanent liver damage, and in many cases, death. More than 82 percent of those who are infected will progress to chronic liver disease. It is suspected that there are, at present, more than 4.5 million people in the United States that are infected with hepatitis C, and more than 200 million around the world.
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