Which of the following is an example of passi | vedclass

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(D) Passive immunity is defined as the immunity acquired when ready-made antibodies are directly given to the body to protect against foreign agents.$

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All of the above

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(D) Passive immunity is defined as the immunity acquired when ready-made antibodies are directly given to the body to protect against foreign agents.$A$. The colostrum (mother's milk) contains abundant $IgA$ antibodies,which provide passive immunity to the infant.$B$. During pregnancy,$IgG$ antibodies are transferred from the mother to the fetus across the placenta,providing passive immunity.$C$. Direct injection of pre-formed antibodies (e.g.,anti-tetanus serum) is a classic example of artificial passive immunity.Since all the given options involve the transfer or administration of ready-made antibodies,they are all examples of passive immunity.

Which of the following is an example of passive immunity?

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