Meningococcal vaccine is available for all of the following, except

Ans. is 'b' i.e., Group B Meningococcal vaccines Currently available meningococcal vaccines include polysaccharide vaccines and polysaccharide-protein conjugate vaccines. The conjugate vaccines are more immunogenic and also induce immunogenic memory. Both vaccines are available against meningococci of serogroup A, C, W135 and Y. There is no group B vaccine is available at present.