Which of the following is true regarding a killed or inactivated vaccine?

A. They will not stimulate IgA production.
B. They stimulate a humoral response.
C. They contain dead bacteria or inactivated viruses.
D. You need booster shots to make memory cells.
E. All of the above are true.



Answer :

Final answer:

Inactivated vaccines contain dead bacteria or inactivated viruses, stimulate a humoral response, and may require booster shots for memory cells.


Explanation:

An inactivated vaccine contains dead bacteria or inactivated viruses, leading to the stimulation of a humoral response instead of a full live infection. These vaccines do not stimulate IgA production and often require booster shots to establish memory cells for long-lasting immunity.


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