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Who is at Risk for Chronic Disease of HBV

Jul 18, 2018

The likelihood that infection becomes chronic depends upon the age at which a person becomes infected. Children less than 6 years of age who become infected with the hepatitis B virus are the most likely to develop chronic infections.

In infants and children:

80–90% of infants infected during the first year of life develop chronic infections; and

30–50% of children infected before the age of 6 years develop chronic infections.

In adults:

less than 5% of otherwise healthy persons who are infected as adults will develop chronic infection; and

20–30% of adults who are chronically infected will develop cirrhosis and/or liver cancer.


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