Vaccine composition

摘要

The present invention relates to vaccine compositions for the effective prevention of neisserial, preferably meningococcal, disease. The vaccine of the invention comprise a multivalent meningococcal bled composition comprising at least one bleb with homologous bactericidal activity which is derived from a meningococcal strain with a serosubtype that is prevalent in a country of use, and at least one bleb with heterologous bacterial activity which is derived from a meningococcal strain which need not have a serosubtype that is prevalent in the country of use.