Capacity of producing IgG starts at what age –
Correct Answer: 6 months
Description: Ans. is 'a' i.e., 6 months o Immediately after birth, the newborn has high level of IgG antibodies in blood stream. But these antibodies are passively transferred to the baby from mother (i.e., maternal antibodies),o During next few- months, the maternal IgG antibodies steadily decrease.o When healthy baby is about 2-3 months old, the immune system starts producing its own IgG antibodies.o Once healthy babies reach six months of age, their IgG productin reaches at normal level.Note:o IgM antibodies production starts before birth only (3-6 months before), but at very lowr level.
Category:
Microbiology
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