BEXSERO was developed using a multiple antigen approach. Immunization with BEXSERO is intended to raise the titer of bactericidal antibodies that specifically bind the vaccine antigens fHbp, NadA, NHBA, and PorA P1.4 (the immunodominant antigen present in the OMV component). 1*
Factor H binding protein
Neisserial adhesin A
Neisseria Heparin Binding Antigen
Outer Membrane Vesicles that contain PorA 1.4
* Clinical significance unknown.