| abstract |
The presently used meningococcal vaccine (a tetravalent polysaccharide vaccine composed of serotypes A, C, Y and W135) cannot overcome antigenic variability in the population Considering that meningococcal disease during non-endemic periods tends to be caused by multiple strains or strain variants, with frequent changes over time in dominant strains, for generic meningococcal vaccines Providing more than one antigenic species. Neisseria bacteria, in particular N. cerevisiae. meningitidis and N.M. A composition comprising a combination of biological molecules from gonorrhoeae. [Selection figure] None |