In this open , randomised , controlled study , @ healthy infants received combined diphtheria-tetanus-whole-cell pertussis-hepatitis B / Haemophilus influenzae type b vaccine ( DTPw-HBV/Hib ) and oral poliovirus vaccine ( OPV ) co-administered with PHiD-CV ( PHiD-CV group ) or without PHiD-CV ( control group ) at @-@-@ weeks of age .