NRGN and meningococcal infection: Similarly, the Nm-Ng NOMV elicited antibodies with high SBA titers against diverse Ng strains compared to the Ng NOMV alone (Figure 2) and inhibited the colonization of a heterologous MenB strain (8047) and a homologous Ng strain (WHO F) in a mouse model of meningococcal disease (Figure 4a).