

MCQOPTIONS
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1. |
Infants are most susceptible to bacterial infection due to low circulating levels of IgG |
A. | in utero (before birth) |
B. | at 0-3 months of age |
C. | at 3-12 months of age |
D. | at 12-24 months of age |
Answer» D. at 12-24 months of age | |