Immunogenicity and Reactogenicity of DTPa-IPV/Hib Vaccine Co-administered With Hepatitis B Vaccine for Primary and Booster Vaccination of Taiwanese Infants

• Main Authors: Pei-Lan Shao, Chun-Yi Lu, Yu-Chia Hsieh, Hans L Bock, Li-Min Huang
• Format: Article
• Language: English
• Published: Elsevier 2011-06-01
• Series: Journal of the Formosan Medical Association
• Online Access: http://www.sciencedirect.com/science/article/pii/S0929664611600612

Immunogenicity and reactogenicity of the combined diphtheria-tetanus-acellular pertussis-inactivated poliovirus-Haemophilus influenzae type b (Hib) conjugate vaccine (DTPa-IPV/Hib, Infanrix™-IPV + Hib) was assessed when co-administered with hepatitis B (HBV) vaccine. Seventy healthy infants received DTPa-IPV/Hib at 1.5, 3.5, 6 and 15–18 months, and HBV at birth, 1.5, 6 and 15–18 months of age. Serological responses were assessed. Diphtheria, tetanus, Hib and pertussis seroprotection/seropositivity rates were 100% after primary vaccination. Post-primary immune responses to poliovirus could not be evaluated for technical reasons. However, after the booster dose, seroprotection/seropositivity rates, including poliovirus, were 100%. Over 95% were seroprotected against HBV. Post-booster geometric mean antibody concentrations/titers (GMC/GMTs) rose from 14-fold to 45-fold, indicating effective priming against all antigens, including polioviruses. DTPa-IPV/Hib was well tolerated alone or co-administered with HBV. No serious adverse events were considered related to vaccination. Primary and booster vaccination with combined DTPa-IPV/Hib and HBV was immunogenic and well tolerated. Combination vaccines enable vaccine providers to conveniently provide routine pediatric immunizations, with minimal discomfort.