Serogroup B meningococcus antigens can successfully be combined with diphtheria, tetanus and pertussis toxoids (“DTP”) to provide effective combination vaccines for protecting against multiple pathogens. These combinations are effective with a range of different adjuvants, and with both pediatric-type and booster-type DTP ratios. The adjuvant can improve the immune response which the composition elicits； alternatively, by including an adjuvant it is possible for the compositions to have a relatively lower amount of antigen while nevertheless having immunogenicity which is comparable to unadjuvanted combination vaccines.
