Immunization with the childhood DPT vaccine (diphtheria, pertussis, and tetanus) protects against subsequent exposure to tetanus by:
a. stopping isotype switching of B cells from IgM to IgA
b. preloading antigen-presenting cells
c. stimulating quick inflammation upon future exposure
d. producing life-spanning antitetanus IgE antibodies
e. generating tetanus specific memory B cells
Answer: e. generating tetanus specific memory B cells
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