Multiple Choice
An example of natural active immunity would be _______.
A) chickenpox vaccine triggering extended immunity to chickenpox
B) chickenpox infection, followed by lifelong immunity
C) giving a person immune serum globulins to chickenpox virus after exposure to the disease
D) a fetus acquiring maternal IgG to the chickenpox virus across the placenta
Correct Answer:

Verified
Correct Answer:
Verified
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