Definition
- An acute systemic infection caused by the hepatitis B virus (HBV)
- Liver is the primary target, but extrahepatic complications are common.
- Transmitted by percutaneous, perinatal, and sexual routes
- After acute infection, complete recovery with lifetime immunity occurs in ~95% of patients.
- Possible long-term complications
- Chronic infection
- Chronic liver disease
- Liver failure
- Hepatocellular carcinoma
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