Safety and immunogenicity of a combination diphtheria-tetanus toxoids-acellular pertussis-hepatitis B vaccine administered at two, four and six months of age compared with monovalent hepatitis B vaccine administered at birth, one month and six months of age.

<h4>Objective</h4>To evaluate the safety and immunogenicity of diphtheria-tetanus toxoids-acellular pertussis (DTPa)-hepatitis B (HepB) combination vaccine given at 2, 4 and 6 months of age compared with monovalent HepB vaccine given at birth, 1 month and 6 months of age and DTPa vaccine given at 2,... View More