| 摘要 |
The present application discloses an immunogenic composition comprising N. meningitidis capsular polysaccharides from at least one of serogroups A, C, W135 and Y conjugated to a carrier protein to produce a TV. meningitidis capsular polysaccharide conjugate, wherein the average size of each N. meningitidis polysaccharide is above 50 kDa. |
