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Hepatitis A and B Vaccinations

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What is hepatitis?

The term 'hepatitis' means inflammation of the liver. Hepatitis can be caused by viruses, other infectious agents, alcohol, and other chemicals. The two viruses that most commonly infect the liver are the hepatitis A virus and the hepatitis B virus. Although their names are similar, these viruses are not related. They differ in the way they are transmitted from person to person and their ability to cause chronic infection.

Medically Reviewed by a Doctor on 4/16/2014


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