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Human Health And Disease

Question
CBSEENBI12047389
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Immunity that develops in the foetus after receiving antibodies from mother's blood through placenta is

  • naturally acquired active immunity

  • artificially acquired active immunity

  • naturally acquired passive immunity

  • artificially acquired passive immunity

Solution

C.

naturally acquired passive immunity

Maternal passive immunity is the type of a naturally acquired passive immunity that develops in the foetus after receiving antibodies from the mother's blood through placenta by the receptor present on the placental cells (which occurs around the third month of gestation). IgG is the only antibody isotype which can pass through the placenta. IgA antibodies present in the breast milk protects foetus against bacterial infections.

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