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Breast fed infants may be at greater risk of mother to infant hepatitis B virus infection compared with formula fed infants. We studied 85 infants born to 84 hepatitis B surface antigen positive mothers (only two of whom were hepatitis B e positive), and who had received immunisation against hepatitis B virus. Our results indicate that breast feeding does(More)
IgG subclasses of antibodies to the hepatitis B surface antigen (HBsAg) in sera from 40 healthy infants immunized with the vaccine against hepatitis B virus (HBV) were detected using an enzyme-linked immunosorbent assay (ELISA) with monoclonal antibodies. The infants were born to asymptomatic HBsAg-positive mothers. Total serum IgG subclasses were also(More)
Antibody response to hepatitis B virus vaccine was compared in 47 breast- and 112 formula-fed infants born to hepatitis B surface antigen-(HBsAg-) positive mothers. No difference was observed as to the percentage of infants who seroconverted. However, formula-fed infants developed transient but significantly higher anti-HBs antibody levels as compared to(More)
Infants born to HBsAg-positive mothers are at high risk of contracting perinatal hepatitis B infection. The prevention is based on active as well as passive immunoprophylaxis. We have used hepatitis vaccine in 18 newborns of as many HBsAg-positive mothers. Some haematologic and immunologic parameters are here reported. No alterations were observed as to(More)
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