Assertion: hepatitis b's infection | /r/AtLocation | 90% of infants
Facets:
Source sentences:
text: A chronic infection can occur in 90% of infants exposed to HBV, up to 50% of young children, and 10% of adults.
text: Chronic infection occurs in 90% of infants infected at birth, 25-50% of children infected at age 1-5, and in 5% of persons infected after 5 years of age.