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The aim of the study was to investigate the in vitro T-cell response to recombinant hepatitis B (rHBsAg) in a group of children (defined as “slow responders”) vaccinated at birth, presenting antibody levels <10 mIU/ml after the vaccination schedule, and developing anti-rHBs antibodies after revaccination. T-cell mediated immune response towards rHBsAg was evaluated in 35 healthy children in “bulk”...
Because hepatitis A infection may be more severe in patients with chronic liver disease, we vaccinated 33 children who were chronic HBsAg carriers against hepatitis A virus. Anti-hepatitis A virus seroconversion rates after the first, second, and third doses were 90.9%, 96.9%, and 100%, respectively. (J Pediatr 1999;134:784-5)
The reactogenicity and immunogenicity of a tetravalent diphtheria-tetanus-acellular pertussis-hepatitis B (DTPa-HB) vaccine (SmithKline Beecham) were studied in 565 infants immunized according to one of two different schedules, at 2, 4 and 6 months of age (group A n = 208) or at 3, 5 and 11 months of age (group B n = 357). The incidences of local and general reactions within the first 8 days after...
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