Acute HBV progresses to chronic infection in
about 90% of infants infected at birth, 30% to 50%
of children ages one to five, and 5% of adults.1 People
with a compromised immune system are at elevated
risk of developing chronic infection. Those
with chronic infection tend to be asymptomatic carriers,
though roughly 25% eventually develop cirrhosis
or hepatocellular carcinoma