NBME 21

nbme21/Block 1/Question#3

An investigator is studying the efficacy of ...

Flagellin

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submitted by cantaloupe5(5),

Capsular polysaccharide vaccines are often conjugated to proteins to improve immunogenicity. Flagellin is the only answer choice that's a protein.


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submitted by wasabilateral(0),

I think they want you to think about how conjugate vaccine is made: polysaccharide + protein fragment (to induce T dependent immune response). Only flagellin is a protein (or at least sounds like one) in the option list.