Nimenrix® is a meningococcal A,C,Y,W-135 conjugate vaccine used to protect against four groups of Neisseria meningitidis, group A, group C, group Y and group W-135.
Nimenrix® is used as an alternative vaccine to the meningococcal C conjugate vaccine (Neisvac-C™), meningococcal A,C,Y,W-135 conjugate vaccine (Menactra®) and the meningococcal A,C,Y,W-135 polysaccharide vaccine (Mencevax® ACYW).
The conjugate and polysaccharide vaccines work differently to generate protection against the bacteria. Protection from the conjugate vaccines lasts longer than that from the polysaccharide vaccines. The conjugate vaccines also generate long term memory cells allowing rapid boosting of immunity years later.