Multiple Choice
Why do vaccines help human health?
A) Vaccines stimulate the immune system to recognize a virus faster if encountered.
B) Vaccines stimulate the immune system to destroy a virus more effectively if encountered.
C) Vaccines stimulate the immune system to remember a virus for an extended period of time.
D) All of the above are reasons why vaccines help human health.
Correct Answer:
Verified
Correct Answer:
Verified
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