perinatal transmission of hepatitis b virus ( hbv ) from asymptomatic hbsag carrier mothers to their infants was studied in 78 mother-infant pairs by determination of hbsag , hbeag and anti-hbe both in the mothers and in their infants at regular intervals for those children up to the time when they reached at least one year of age .
C0021270
infants
C0008059
children