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Hepatitis B

 

Hepatitis means inflammation of the liver. Toxins, certain drugs, some diseases, heavy alcohol use, and bacterial and viral infections can all cause hepatitis. Hepatitis is also the name of a family of viral infections that affect the liver; the most common types in the United States are hepatitis A, hepatitis B, and hepatitis C.
 

Hepatitis B is a contagious liver disease that results from infection with the hepatitis B virus. It can range in severity from a mild illness lasting a few weeks to a serious, lifelong illness. Hepatitis B is usually spread when blood, semen, or another body fluid from a person infected with the hepatitis B virus enters the body of someone who is not infected. This can happen through sexual contact with an infected person or sharing needles, syringes, or other drug-injection equipment. Hepatitis B can also be passed from an infected mother to her baby at birth.

Hepatitis B can be either acute or chronic. Acute hepatitis B virus infection is a short-term illness that occurs within the first 6 months after someone is exposed to the hepatitis B virus. Acute infection can — but does not always — lead to chronic infection. Chronic hepatitis B virus infection is a long-term illness that occurs when the hepatitis B virus remains in a person’s body. Chronic hepatitis B is a serious disease that can result in long-term health problems, and even death.

The best way to prevent hepatitis B is by getting vaccinated.


Frequently Asked Questions

Answers to common questions about hepatitis B

Spotlight

Patient Education Resources

Information and educational materials for patients

 

Page last reviewed: July 8, 2008
Page last modified: July 8, 2008
Content source:
  Division of Viral Hepatitis
  National Center for HIV/AIDS, Viral Hepatitis, STD, and TB Prevention