The meningococcus (Neisseria meningitidis) remains an important threat to human health worldwide. This Gram-negative bacterium causes elevated disabilities and mortality in infected individuals. Despite several available vaccines. currently there is no universal vaccine against all circulating meningococcal strains (Vogel et al. https://safeersappliancers.shop/product-category/neff-c17fs32n0b-n-90-built-in-compact-oven-with-steam-function-stainless-steel/