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Question

Short-lived immunity transmitted from mother to foetus across placenta or from mother to infant through mother's milk is categorised under

A
active immunity
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B
passive immunity
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C
cellular immunity
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D
innate or non-specific immunity
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Solution

The correct option is B passive immunity
Passive immunity involves the transfer of ready-made antibodies to a non-immune person. It may be natural, e.g., antibodies transferred from mother to child across the placenta or through mother’s milk to the infant. It can be artificially induced as well, e.g., administration of cultured antibodies, antivenoms, etc.

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