Which of the Following Antibodies is Synthesized by the Infant

Question

Which of the following antibodies is synthesized by the infant soon after birth?
A)IgA
B)IgM
C)IgG
D)IgD

Accepted Answer

IgM is the first antibody type made by a fetus and newborn. It is also the first antibody to be made by the infant in response to an infection.