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(A) Passive immunity is a type of immunity where pre-formed antibodies are directly introduced into the body to provide immediate protection against a

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Antibodies

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(A) Passive immunity is a type of immunity where pre-formed antibodies are directly introduced into the body to provide immediate protection against a pathogen.Unlike active immunity,where the body's immune system produces its own antibodies in response to an antigen (as in vaccination or natural infection),passive immunity does not involve the activation of the host's immune system.Examples include the transfer of $IgG$ antibodies from mother to fetus through the placenta and $IgA$ antibodies through colostrum,or the administration of anti-venom injections.

Passive immunity is obtained through the introduction of which of the following?

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