How does the risk of developing chronic hepatitis B (HBV) (Hep B) vary among age groups?

Updated: Jun 08, 2021
  • Author: Nikolaos T Pyrsopoulos, MD, PhD, MBA, FACP, AGAF; Chief Editor: BS Anand, MD  more...
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The earlier the disease is acquired, the greater the chance a patient has of developing chronic hepatitis B infection. Infants (mainly infected through vertical transmission) have a 90% chance, children have a 25-50% chance, adults have an approximately 5% chance, and elderly persons have an approximately 20-30% chance of developing chronic disease.

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