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Purpose : Infection by Haemophilus influenzae Type B(Hib) occurs most often in infants and children who are 5 years old and less. The incidence is highest around 6 months of age, and then decreases thereafter as infants gain natural immunity. Hi PRP-D conjugate vaccine is poorly immunogenic in infants. However, immunogenicity PRP-D vaccine in Korean infants is unknown. This... |
