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To assess the anti-PRP antibody response one month after vaccination in the groups receiving a fourth consecutive dose of two formulations of DTPw-HBV/Hib vaccine
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All subjects were previously primed with one of the two formulations of the combined DTPw-HBV/Hib vaccine. At the age of 10 months, 50% of each group received a plain PRP challenge to assess the immune memory to PRP. In this booster study in the second year of life, all subjects who received DTPw-HBV/Hib and plain PRP will receive DTPw-HBV as a booster vaccination. All other subjects will receive as booster the same vaccine they received in the primary vaccination study.
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Data sourced from clinicaltrials.gov
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