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Which of the following procedures improves the immunogenicity of vaccines that use capsular polysaccharides as antigens?

A) Heat denaturation

B) Liposome incorporation

C) Oligosaccharide reduction

D) Protein conjugation

I dont know the exact ans but i guess that its A.

i would go with D

yeh D should be right capsular vaccines r conjugated with proteins like diphtheria toxoids to increase their immunogenicity.