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Discussion

Chronic hepatitis B infection leads to chronic liver disease in about

  • A.under 1 per cent of those affected
  • B.about 60 per cent of those affected
  • C.essentially all of those affected
  • D.15 to 25 per cent of those affected

Answer: D

Between one in seven and one in four of those chronically infected develop cirrhosis, liver failure or liver cancer, which is why carriers need long-term monitoring. The remainder may carry the virus for decades without serious liver injury.

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