CRM197-conjugated serogroup C meningococcal capsular polysaccharide, but not the native polysaccharide, induces persistent antigen-specific memory B cells. by Kelly, D, Snape, MD, Clutterbuck, E, Cutterbuck, E, Green, S, Snowden, C, Diggle, L, Yu, L, Borkowski, A, Moxon, E, Pollard, A