Neisserial vaccines

摘要

The present invention relates to compositions comprising at least one purified PorA protein antigen and at least one purified FetA protein antigen. In particular, said PorA/FetA antigens are antigenically variable antigens comprising the variable regions of PorA/FetA. Specific combinations of PorA/FetA epitopes are presented for example in Table 3. The invention also relates to methods of immunization comprising administering said compositions, and to methods for producing compositions. Preferably the compositions are purified protein compositions. Preferably the compositions are vaccine compositions.