Match the description of a vaccine in questions with the correct type of vaccine (A-G).
-Induction of a T cell-dependent antibody response to polysaccharides,such as Haemophilus influenzae B and pneumococcal capsular polysaccharides
A)Live attenuated or killed bacteria
B)Live attenuated oral virus
C)Synthetic viral subunit vaccines
D)Conjugate vaccines
E)Recombinant viral vectors
F)DNA vaccines
G)Purified subunit vaccines

Question

Quizplus · Accepted Answer

Conjugate vaccines are composed of bacterial capsular polysaccharides covalently coupled to proteins.This hapten-carrier arrangement promotes T cell-dependent responses to the polysaccharides,which is required for protective IgG memory responses,with high affinity IgG and long lived memory.Polysaccharides alone do not activate T cells and therefore do not induce robust isotype switching,affinty maturation,or memory cell generation.

Match the Description of a Vaccine in Questions with the Correct