Immunogenicity of the pentavalent DTwP-HB-Hib vaccine (Shan-5) used in the Thai Expanded Program on Immunization compared to the hexavalent DTaP-HB-Hib-IPV and DTwP-HB-Hib (Quinvaxem) vaccines administered to infants at 2, 4, 6 months of age

Nasamon Wanlapakorn, Napa Pruetarat, Nasiri Sarawanangkoor, Kanchana Phanphanit, Donchida Srimuan, Thaksaporn Thatsanathorn, Thanunrat Thongmee, Nawarat Posuwan, Yong Poovorawan