The source of passive immunity that a mother gives to her infant through breast milk is known as ________.
A. IgA
B. IgD
C. IgM
D. IgE
Answer:A
The source of passive immunity that a mother gives to her infant through breast milk is known as ________.
A. IgA B. IgD C. IgM D. IgE
Explanation: A) Correct!