Question:
After birth, infant receives antibodies IgA through colostrum from mother. This is an example of ______________ immunity.
After birth, infant receives antibodies IgA through colostrum from mother. This is an example of ______________ immunity.
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Passive immunity provides immediate protection but is short-lived.
Updated On: Mar 6, 2026
- natural acquired active
- innate (natural)
- artificial acquired passive
- natural acquired passive
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The Correct Option is D
Solution and Explanation
Step 1: Understanding antibody transfer.
Colostrum is the first milk produced by the mother and is rich in antibodies, especially IgA.
Step 2: Nature of immunity.
The infant does not produce these antibodies; instead, they are transferred directly from the mother.
Step 3: Classification of immunity.
Since antibodies are received naturally and passively, this immunity is termed natural acquired passive immunity.
Step 4: Conclusion.
Thus, IgA transfer through colostrum is an example of natural acquired passive immunity.
Colostrum is the first milk produced by the mother and is rich in antibodies, especially IgA.
Step 2: Nature of immunity.
The infant does not produce these antibodies; instead, they are transferred directly from the mother.
Step 3: Classification of immunity.
Since antibodies are received naturally and passively, this immunity is termed natural acquired passive immunity.
Step 4: Conclusion.
Thus, IgA transfer through colostrum is an example of natural acquired passive immunity.
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