A flu vaccine is needed seasonally to be effective but a polio vaccine is only needed once.The best explanation of this is ________.
A) the flu vaccine is substantially weaker than the polio vaccine
B) exposure to flu vaccine produces no memory cells from proliferating B-lymphocytes
C) the polio virus is substantially weaker than the flu virus
D) the flu has several strains that change seasonally
Correct Answer:
Verified
Q51: Which of the following examples below describes
Q52: Membrane attack complex (MAC)kills by _.
A) providing
Q53: Overlap in the innate and adaptive immune
Q54: Inflammation _.
A) is caused by bacterial activity
Q55: During inflammation fluids will passively diffuse out
Q57: Which of the following does not describe
Q58: An advantage to adaptive immunity is _.
A)
Q59: A vaccine is effective because _.
A) B-lymphocytes
Q60: All but one of the following occur
Q61: Which of the following is associated with
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