| 摘要 |
The present application relates to an immunogenic composition comprising at least 2 conjugates of N. meningitidis capsular saccharide and protein carrier, wherein said conjugates comprise at least 2 different N. meningitidis capsular saccharides selected from the group consisting of MenA, MenC, MenY and MenW, wherein at least one capsular saccharide is conjugated to a protein carrier with a saccharide:protein ratio (w/w) between 1:2-1:5, and wherein at least one different capsular saccharide is conjugated to a protein carrier with a saccharide:protein ratio (w/w) between 5:1-1:1.99.
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