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  • Title: Combined passive and active immunization for interruption of perinatal transmission of hepatitis B virus in Taiwan.
    Author: Lo KJ, Tsai YT, Lee SD, Yeh CL, Wang JY, Chiang BN, Wu TC, Yeh PS, Goudeau A, Coursaget P.
    Journal: Hepatogastroenterology; 1985 Apr; 32(2):65-8. PubMed ID: 3159639.
    Abstract:
    We attempted a clinical trial to interrupt transmission of hepatitis B virus (HBV) infection from hepatitis B surface antigen (HBsAg) positive and hepatitis Be antigen (HBsAg) positive mothers to their infants in Taiwan. Screening of 5,595 pregnant women revealed that 856 (15.3%) were HBsAg positive. Three hundred and sixty-one (42.2%) of the HBsAg positive pregnant women were HBeAg positive. Infants born to HBsAg and HBeAg positive mothers were randomized into 3 groups to receive the HBV vaccine alone or combined with hepatitis B immune globulin (HBIG). HGV vaccine was given at 2, 6, and 10 weeks after birth. Group I received HBV vaccine alone while Group II received HBV vaccine in combination with HBIG at birth and group III received HBV vaccine plus HBIG at birth and again at one month old. Group IV constituted the control group when their parents refused vaccination. At 6 months of age, the HBV carrier rate was 23.7% (9/38) in Group I, 11.1% (4/36) in Group II, and 5.3% (2/38) in Group III infants. Compared with 90% of infants who became HBV carriers in the control group (Group IV), the efficacy of HBV vaccination in preventing HBV infection among these high risk infants at the 6th month was 73.7% in Group I, 87.7% in Group II, and 94.1% in Group III. The antibody to HBsAg (anti-HBs) positivity rate in sera of Group I, II, III infants at 6 months of age was 79.0%, 88.9% and 94.7%, respectively. These initial results indicate that combined passive and active immunization is efficacious in interrupting perinatal transmission of HBV infection.
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