When pre-formed antibodies are injected into | vedclass

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(C) When the body is exposed to antigens (living or dead microbes or their proteins) during immunization or infection,antibodies are produced in the h

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Passive immunity

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(C) When the body is exposed to antigens (living or dead microbes or their proteins) during immunization or infection,antibodies are produced in the host body. This is called active immunity.When ready-made or pre-formed antibodies are directly injected into the body to protect against foreign agents,it is called passive immunity.Examples include the administration of tetanus antitoxin or the transfer of $IgA$ antibodies from mother to infant through colostrum.

When pre-formed antibodies are injected into the body,it is called .........

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