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BEXSERO: Mechanism of action 1*

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.


  1. BEXSERO Product Monograph. June 12, 2020.

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